НАПРЕДЪК ПО ИЗПЪЛНЕНИЕ НА НАУЧНАТА ПРОГРАМА на Научна група 3.1.6. Математическо моделиране, иновативни бизнес модели и социални иновации за периода 01.10.2025 г.-31.12.2025 г.

НАПРЕДЪК ПО ИЗПЪЛНЕНИЕ НА НАУЧНАТА ПРОГРАМА на Научна група 3.1.6. Математическо моделиране, иновативни бизнес модели и социални иновации за периода 01.07.2025 г.-30.09.2025 г.

НАПРЕДЪК ПО ИЗПЪЛНЕНИЕ НА НАУЧНАТА ПРОГРАМА на Научна група 3.1.6. Математическо моделиране, иновативни бизнес модели и социални иновации за периода 01.04.2025 г.-30.06.2025 г.

НАПРЕДЪК ПО ИЗПЪЛНЕНИЕ НА НАУЧНАТА ПРОГРАМА на Научна група 3.1.6. Математическо моделиране, иновативни бизнес модели и социални иновации за периода 01.01.2025 г.-31.03.2025 г.

НАПРЕДЪК ПО ИЗПЪЛНЕНИЕ НА НАУЧНАТА ПРОГРАМА на Научна група 3.1.6. Математическо моделиране, иновативни бизнес модели и социални иновации за периода 01.10.2024 г.-31.12.2024 г.

Научни публикации за 2024 г.

1. Koleva, M.N.; Vulkov, L.G. Numerical Reconstruction of Time-Dependent Boundary Conditions to 2D Heat Equation on Disjoint Rectangles at Integral Observations. Mathematics 2024, 12, 1499. https://doi.org/10.3390/math12101499
ИФ: 2.3, Q1, WoS

2. Koleva, M.N.; Vulkov, L.G. Numerical Recovering of Space-Dependent Sources in Hyperbolic Transmission Problems. Mathematics 2024, 12, 1748. https://doi.org/10.3390/math12111748
ИФ: 2.3, Q1, WoS

3. Koleva, M.N.; Vulkov, L.G. Inverse Boundary Conditions Interface Problems for the Heat Equation with Cylindrical Symmetry. Symmetry 2024, 16, 1065. https://doi.org/10.3390/sym16081065
ИФ: 2.2, Q2, WoS

4. Dimitrov, N.D.; Jonnalagadda, J.M. Existence and Nonexistence Results for a Fourth-Order Boundary Value Problem with Sign-Changing Green's Function. Mathematics 2024, 12, 2456. https://doi.org/10.3390/math12162456
ИФ: 2.3, Q1, WoS

5. Dimitrov, N.D.; Jonnalagadda, J.M. Existence of Three Positive Solutions for Boundary Value Problem of Fourth Order with Sign-Changing Green's Function. Symmetry 2024, 16, 1321. https://doi.org/10.3390/sym16101321
ИФ: 2.2, Q2, WoS

6. Koleva, M.N.; Vulkov, L.G. Positive Fitted Finite Volume Method for Semilinear Parabolic Systems on Unbounded Domain. Axioms 2024, 13, 507. https://doi.org/10.3390/axioms13080507
ИФ: 1.9, Q1, WoS

7. Koleva, M.N.; Vulkov, L.G. Numerical Solution of External Boundary Conditions Inverse Multilayer Diffusion Problems. Symmetry 2024, 16, 1396. https://doi.org/10.3390/sym16101396
ИФ: 2.2, Q1, WoS

8. Koleva, M.N.; Vulkov, L.G. Identification of Boundary Conditions in a Spherical Heat Conduction Transmission Problem. Symmetry 2024, 16, 1507. https://doi.org/10.3390/sym16111507
ИФ: 2.2, Q1, WoS

9. Kandilarov, J.D.; Vulkov, L.G. Numerical Algorithms for Identification of Convection Coefficient and Source in a Magnetohydrodynamics Flow. Algorithms 2024, 17, 387. https://doi.org/10.3390/a17090387
ИФ: 1.8, Q2, WoS

10. Dimitrov, N.D.; Jonnalagadda, J.M. Existence, Uniqueness, and Stability of Solutions for Nabla Fractional Difference Equations. Fractal Fract. 2024, 8, 591. https://doi.org/10.3390/fractalfract8100591
ИФ: 3.6, Q1, WoS

11. Dimitrov, N.D., Jonnalagadda, J.M. Multiplicity and Stability of Positive Solutions for a Fourth-Order Three-Point BVP with Sign-Changing Green's Function. Mediterr. J. Math. 21, 193 (2024). https://doi.org/10.1007/s00009-024-02737-7
ИФ: 1.1, Q1, WoS

12. Koleva, M.N.; Vulkov, L.G. A Galerkin Finite Element Method for the Reconstruction of a Time-Dependent Convection Coefficient and Source in a 1D Model of Magnetohydrodynamics. Appl. Sci. 2024, 14, 5949. https://doi.org/10.3390/app14135949
ИФ: 2.5, Q2, WoS

13. Sapundzhi, F.; Chikalov, A.; Georgiev, S.; Georgiev, I. Predictive Modeling of Photovoltaic Energy Yield Using an ARIMA Approach. Appl. Sci. 2024, 14, 11192. https://doi.org/10.3390/app142311192
ИФ: 2.5, Q2, WoS

14. Todorov, V., Georgiev, S., Georgiev, I., Traneva, V., Tranev, S. (2024). Multidimensional Air Pollution Sensitivity Analysis for Intelligent Decision Modeling by Means of Quasi-Monte Carlo Sequences. In: Kahraman, C., Cevik Onar et al. (eds) Intelligent and Fuzzy Systems. INFUS 2024. Lecture Notes in Networks and Systems, vol 1090. Springer, Cham. https://doi.org/10.1007/978-3-031-67192-0_36
SJR rank: 0.175, WoS

15. Georgiev, I., Todorov, V., Georgiev, S., Traneva, V., Tranev, S. (2024). Intelligent Monte Carlo Approach for Solving Multidimensional Fredholm Integral Equations. In: Kahraman, C., Cevik Onar et al. (eds) Intelligent and Fuzzy Systems. INFUS 2024. Lecture Notes in Networks and Systems, vol 1090. Springer, Cham. https://doi.org/10.1007/978-3-031-67192-0_35
SJR rank: 0.175, WoS

16. Beloeva, S., Venelinova, N., (2024). Conceptual model of training in remote virtual supervision in social work. „Стратегии на образователната и научната политика", 5s, 64-76, doi: 10.53656/str2024-5s-6-con.
ИФ: 0.4, Q4, WoS

17. Dorokhova, L., Beloeva, S., Venelinova, N., Dorokhov, O. (2024). Consumer service modelling: the study of buyer's queues in pharmacies.// Access to science, business, innovation in digital economy, 2024, No 5, pp. 511-525, ISSN 2683-1007 (online) https://journal.access-bg.org/issue-5-3-2024/consumer_service_modeling-the_study_of_buyers_queues_in_pharmacies
ИФ: 0.8, Q3, WoS

18. Stoycheva, B., P. Vitliemov (2024). Challanges of using artificial intelligence in management decision making Strategies for Policy in Science and Education, vol32 num 3s, 42-51, doi: 10.53656/str2024-3-2-cha
ИФ: 0.4, Q4, WoS

19. Pavlov, D., M. Tamasila, A. Todorova, J. Murzina (2024). Family Businesses and Green Transformation - Attitudes and Opportunities for the Development of Sustainable Intergenerational Businesses 9th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), 0-6, doi: 10.1109/EEAE60309.2024.10600633
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20. Todorova, A., I. Kostadinova (2024). The Role of Environmental Non-Governmental Organizations in Achieving Energy Efficiency 9th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), 1-6, doi: 10.1109/EEAE60309.2024.10600577
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21. Kotsev. E., S. Kunev (2024). Energy Efficiency-oriented Entrepreneurship or Entrepreneurship-oriented Energy Efficiency Initiatives: A Future Experts' Perspective 9th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), 27 - 29 June, 2024, Ruse, Bulgaria, 1-5, doi: 10.1109/EEAE60309.2024.10600501
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22. Antonova, D., S. Beloeva, A. Todorova. (2024). The Dual Impact оf Artificial Intelligence: Catalyst for Innovation or Threat to Stability. Сп. „Стратегии на образователната и научната политика", книжка 6/2024, година XXXII. https://doi.org/10.53656/str2024-6s-4-dua
ИФ: 0.4, Q4, WoS

23. Todorova, А., I. Kostadinova, D. Antonova, S. Ruskova. (2024). Artificial Intelligence Against Climate Change Challenges: From Research to Action Towards a More Sustainable Future. 8th "International Symposium on Multidisciplinary Studies and Innovative Technologies", https://ieeexplore.ieee.org/document/10757195
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Научни публикации за 2025 г.

1. Georgiev, I., L. Vulkov, Springer, Computational reconstruction of the volatility term structure in the general Hull–White model, Computation 2025, 13, 16. https://doi.org/10.3390/computation13010016
ИФ: 1.9, Q2, WoS

2. Koleva, M.N.; L.G. Vulkov, The numerical solution of an inverse pseudoparabolic problem with a boundary integral observation. Mathematics 2025, 13, 908. https://doi.org/10.3390/math13060908
ИФ: 2.3, Q1, WoS

3. Dimitrov, N.D., J.M. Jonnalagadda, Existence of positive solutions for a class of nabla fractional boundary value problems. Fractal Fract. 2025, 9, 131. https://doi.org/10.3390/fractalfract9020131
ИФ: 3.6, Q1, WoS

4. Koleva, M.N.; L.G. Vulkov, High-order approximations for a pseudoparabolic equation of turbulent mass-transfer diffusion. Axioms 2025, 14, 319. https://doi.org/10.3390/axioms14040319
ИФ: 1.9, Q1, WoS

5. Koleva, M.N.; L.G. Vulkov, Numerical determination of a time-dependent source in a Modified Benjamin–Bona–Mahony equation. Mathematics 2025, 13(10), 1618. https://doi.org/10.3390/math13101618
ИФ: 1.9, Q1, WoS

6. Koleva, M.N.; L.G. Vulkov, Source identification for a two-dimensional parabolic equation with an integral constraint, Mathematics 2025, 13(11), 1876. https://doi.org/10.3390/math13111876
ИФ: 1.9, Q1, WoS

7. Koleva, M.N.; L.G. Vulkov, Computational solution of an inverse boundary-value problem for heat transfer in a composite material. Appl. Sci. 2025, 15, 10230. https://doi.org/10.3390/app151810230

ИФ: 2.5, Q2, WoS

8. Koleva, M.N.; L.G. Vulkov, Second-order implicit–explicit difference scheme for pseudoparabolic equations with nonlinear flux. Axioms 2025, 14, 545. https://doi.org/10.3390/axioms14070545

ИФ: 1.6, Q2, WoS

9. Dimitrov, N.D.; Jonnalagadda, J.M. Existence of positive solutions for a class of nabla fractional difference equations with parameter-dependent summation boundary conditions. Fractal Fract. 2025, 9, 513. https://doi.org/10.3390/fractalfract9080513

ИФ: 3.3, Q1, WoS

10. Dimitrov, N.D.; Jonnalagadda, J.M. Existence results for nabla fractional problems with anti-periodic boundary conditions. Mathematics 2025, 13, 2487. https://doi.org/10.3390/math13152487

ИФ: 2.2, Q1, WoS

11. Dimitrov, N.D.; Jonnalagadda, J.M. Multiple positive solutions of nabla fractional equations with summation boundaries. Mathematics 2025, 13, 3210. https://doi.org/10.3390/math13193210

ИФ: 2.2, Q1, WoS

12. Chaparova, J.V.; Chaparov, D.R.; Georgiev, T.G. An Analytical Study on the Synchronization of a Two-Cell Inhibitory Neural Dynamics. Mathematics 2026, 14, 8. https://doi.org/10.3390/math14010008

ИФ: 2.2, Q1, WoS

13. Fidanova, S. Sensor network for monitoring, Cybernetics and information technologies, 2025, 25(4), 50-58. https://dl.acm.org/doi/10.2478/cait-2025-0032

ИФ: 0.32, Q4, WoS

14. Georgiev, S., B. Idirizov, V. Traneva, S. Tranev, J. Kandilarov, I. Georgiev, V. Todorov, Analysis and forecasting of WTI crude oil price using neural networks and intuitionistic fuzzy logic. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1529. Springer, Cham, 2025, https://doi.org/10.1007/978-3-031-97992-7_29

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15. Todorov, V. S. Georgiev, I. Georgiev, V. Traneva, S. Tranev, M. Petrov, F. Sapundzhi, B. Idirizov, M. Lazarova, M.Todorov, Intelligent Monte Carlo method for solving multidimensional Fredholm integral equations. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1531. Springer, Cham. 2025, https://doi.org/10.1007/978-3-031-98304-7_14

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16. Todorov, V., V. Traneva, S. Tranev, M. Petrov, S. Georgiev, B. Idirizov, I. Tsanov, F. Sapundzhi. Intelligent Monte Carlo methods for sensitivity analysis of the unified danish eulerian model. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1531. Springer, Cham, 2025. https://doi.org/10.1007/978-3-031-98304-7_13

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17. Georgiev, S. V. Todorov, I. Georgiev, B. Idirizov, V. Traneva, S. Tranev, F. Sapundzhi, M. Lazarova, M. Todorov, Intelligent stochastic approaches for valuating European options. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1530. Springer, Cham, 2025. https://doi.org/10.1007/978-3-031-98565-2_32

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18. Stefanova, T., Georgiev, S. Fuzzy Ensemble of large language models for financial sentiment analysis. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1529. Springer, Cham, 2025. https://doi.org/10.1007/978-3-031-97992-7_62

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19. Sapundzhi, F., Popstoilov, M., Georgiev, S., Lazarova, M., Todorov, V. Intelligent machine learning techniques for advancing modern drug discovery and design. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1530. Springer, Cham, 2025. https://doi.org/10.1007/978-3-031-98565-2_44

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20. Sapundzhi, F., Georgiev, S., Lazarova, M., Altaparmakov, I., Todorov, V., Ivanova, A. Intelligent analysis of mechanistic models and docking in biomolecule research. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1530. Springer, Cham, 2025 https://doi.org/10.1007/978-3-031-98565-2_45

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21. Sapundzhi, F., Stoykov, D., Georgiev, S. accurate prediction of solar energy yield in a camper, Based on Intelligent Algorithms. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1531. Springer, Cham, 2025 https://doi.org/10.1007/978-3-031-98304-7_77

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22. Sapundzhi, F., Gunduz, U., Sapundzhi, S., Popstoilov, M., Georgiev, S., Todorov, V., Integrating artificial intelligence and machine learning techniques in intelligent parking systems. In: Kahraman, C., et al. Intelligent and Fuzzy Systems. INFUS 2025. Lecture Notes in Networks and Systems, vol 1528. Springer, Cham, 2025. https://doi.org/10.1007

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23. Antonova, D. & Beloeva, S. (2025). Controlled Anxiety for Stress Management and HR Innovation in Creative Industries (Measurement by Biometrics in a Controlled Stressor Environment). Proceedings of the International Conference on Business Excellence, 19(1), 2025. 3649-3655. https://doi.org/10.2478/picbe-2025-0278

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24. Bratoeva, E., Ruskova, S. & Kunev, S. (2025). Place, Role and Functions of Clinical Social Work in the Field of Healthcare. Proceedings of the International Conference on Business Excellence, 19(1), 2025. 3700-3711. https://doi.org/10.2478/picbe-2025-0282

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25. Bratoeva, E., & Venelinova, N. (2025). Aligning social work higher education and skills with the digital age. Veredas Do Direito, 22, e223843. https://doi.org/10.18623/rvd.v22.n7.3843.

ИФ: 0.1, Q4, WoS

26. Todorova, A., Kostadinova, I., Venelinova, N. (2024). Empathy as a driver of social entrepreneurship: insights from the Bulgarian context, Entrepreneurship and Sustainability Issues 12(2): 71-84. https://doi.org/10.9770/n4955682927
ИФ: 1.2, Q4, WoS

27. Georgieva-Tsaneva, G., Serbezova, I., & Beloeva, S. (2025). Application of Virtual Reality, Artificial Intelligence, and Other Innovative Technologies in Healthcare Education (Nursing and Midwifery Specialties): Challenges and Strategies. Education Sciences, 15(1), 11. https://doi.org/10.3390/educsci15010011
ИФ: 2.3, WoS

28. Todorova, A., Kostadinova, I. (2025). Volunteer motives as a catalyst of the social economy, Entrepreneurship and Sustainability Issues 12(3): 118-138. https://doi.org/10.9770/w9385223236
ИФ: 1.2, Q4, WoS

29. Todorova, A., I. Kostadinova, E. Fleaca and T. M. Doltu. (2025). Energy Efficiency and Its Contribution to the Green Transition and Global Sustainable Development Goals. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 01-08, doi: 10.1109/EEAE65901.2025.11273543.

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30. Todorova, A., I. Kostadinova, T. M. Doltu and T. Kaya. (2025). Green Jobs, Energy Efficiency and Sustainable Development: A Theoretical Overview of the Potential for Transformation and Synergistic Effects. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 1-7, doi: 10.1109/EEAE65901.2025.11273606.

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31. Todorova, A., Kostadinova, I., & Stefanova, S. (2025). Emotional and Social Competencies of Artificial Intelligence: Measurement, Results, and Insights. BRAIN. Broad Research In Artificial Intelligence And Neuroscience, 16(4), 22-42. doi:http://dx.doi.org/10.70594/brain/16.4/2

ИФ: 0.5, Q4, WoS

32. Todorova, A., I. Kostadinova, S. Stefanova. (2025). Service Automation: Effects of Chatbot Implementation on Resource Efficiency and Business Performance in Bulgaria. 9th International Symposium on Multidisciplinary Studies and Innovative Technologies, November 14-16, 2025, Turkie. DOI: 10.1109/ISMSIT67332.2025.11267910

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33. Todorova, A. 2025. Impact of social economy organisations on achieving sustainable development goals, Entrepreneurship and Sustainability Issues 13(2): 24-46. https://doi.org/10.9770/j2805824856

ИФ: 1.3, Q3, WoS

34. Todorova, A., Kostadinova, I., & Stefanova, S. (2025). Developing Sustainability Problem-Solving Skills Through Internet of Things Projects. Sustainability, 17(22), 10367. https://doi.org/10.3390/su172210367

ИФ: 3.3, Q2, WoS

35. Kesgin, K., Kiraz, S., Kosunalp, S., & Stoycheva, B. (2025). Beyond Performance: Explaining and Ensuring Fairness in Student Academic Performance Prediction with Machine Learning. Applied Sciences, 15(15), 8409. https://doi.org/10.3390/app15158409

ИФ: 2.5, Q2, WoS

36. Kocarslan, H., & Stoycheva, B. (2025). The Effect of Digital Literacy on Online Purchase Intention: The Mediating Role of Social Media Use. Journal of Theoretical and Applied Electronic Commerce Research, 20(4), 355. https://doi.org/10.3390/jtaer20040355

ИФ: 4,6, Q2, WoS

37. Fazylova, A., B. Stoycheva, T. Iliev and I. Stoyanov. (2025). Electromechanical and Grid Aspects of Wind Turbine Control in Europe and Northern Eurasia. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 1-5, doi: 10.1109/EEAE65901.2025.11273783.

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38. Kostadinova, I., Todorova, A., Ruskova, S., Tomovska Misoska, A., Letonja, M., & Tomljanović, M. (2025). Sustainability and the Circular Economy through the Eyes of Students: A Comparative Analysis among Bulgaria, North Macedonia, Slovenia and Croatia. European Journal of Sustainable Development, 14(1), 1. https://doi.org/10.14207/ejsd.2025.v14n1p1

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39. Kostadinova, I., Todorova, A., Fleaca, E. & Kunev, S. (2025). Mapping Green Competencies in the Academic Community in Bulgaria and Romania through a Pilot Survey. Proceedings of the International Conference on Business Excellence, 19(1), 2025. 2432-2442. https://doi.org/10.2478/picbe-2025-0188

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40. Kostadinova, I., Todorova, A., Fleaca, B. & Antonova, D. (2025). A Pilot Study about the Green Transformation Knowledge of Students from Bulgaria and Romania. Proceedings of the International Conference on Business Excellence, 19(1), 2025. 2422-2431. https://doi.org/10.2478/picbe-2025-0187

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41. Dorokhov, O.; Beloeva, S., Venelinova, N., Yermolenko, O. (2025). Age-supportive human-resource policies analysis based on the CRANET database. Access to science, business, innovation in digital economy, ACCESS Press, 6(2), 382-399, https://doi.org/10.46656/access.2025.6.2(8)

ИФ: 0.8, WoS

42. J. Murzina, D. Pavlov, D. Pletnev, M. Sheresheva, S. Mirvahedi and V. Kosolapova. (2025). Importance of the Family Constitution for Improving Intergenerational Family Businesses. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 1-6, doi: 10.1109/EEAE65901.2025.11273525.

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43. D. Pavlov et al. (2025). Inheritance of Family Companies as an Element of Intergenerational Businesses in Bosnia and Herzegovina, Bulgaria, Poland, Romania and Uzbekistan. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 1-6, doi: 10.1109/EEAE65901.2025.11273631.

ИФ: 0.7, Q4, WoS

44. Deneva, A., Pavlov, D., Kume, A., Alieva, D., & Petrova, M. (2025). Sustainable Work-Life Balance through Family Entrepreneurship: A Cross-Country Perspective. European Journal of Sustainable Development, 14(2), 937. https://ecsdev.org/ojs/index.php/ejsd/article/view/1732

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45. Deneva, A., D. Pavlov, A. Lichev and S. Puiu. (2025). Environmentally Sustainable Entrepreneurship in the Context of Intergenerational Business: Attitudes and Barriers. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 1-6, doi: 10.1109/EEAE65901.2025.11273682.

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46. Ruskova, S., D.Spasova, S. Kunev, E. Bratoeva (2025). Co-management – a tool for satisfying the interests of all stakeholders in the social ecosystem Proceedings "Leading Change in Disruptive Times", 19th International Conference on Business Excellence 2025 (Bucharest, Romania). Volume 19, Issue 1, 3780-3791, https://doi.org/10.2478/picbe-2025-0288

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47. Stoycheva, B., Popović, I. (2025). The relationship between manager responsibility and organizational rules and procedures. Proceedings of the International Conference on Business Excellence, 19(1), 2025. 4303-4316. https://doi.org/10.2478/picbe-2025-0330

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48. Stoycheva, B., A. Fazylova. (2025). Sustainable Energy Management in Organizations: Opportunities and Challenges. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 1-6, doi: 10.1109/EEAE65901.2025.11273445.

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Научни публикации за 2026 г.

1. Koleva, M.N.; Vulkov, L.G. High-order difference scheme for time-fractional quasilinear parabolic equations. Mathematics 2026, 14, 735. https://doi.org/10.3390/math14040735

ИФ: 2.2, Q1, WoS

2. Koleva, M.N. A Numerical approach for the simultaneous identification of a source term and a robin boundary coefficient in time-fractional reaction–diffusion equations. Mathematics 2026, 14, 324. https://doi.org/10.3390/math14020324

ИФ: 2.2, Q1, WoS

3. Zhivkov, P. The Two-Tiered structure of cryptocurrency funding rate markets. Mathematics 2026, 14, 346. https://doi.org/10.3390/math14020346

ИФ: 2.2, Q1, WoS

4. Zhivkov, P.; Kandilarov, J. Bayesian vs. evolutionary optimization for cryptocurrency perpetual trading: the role of parameter space topology. Mathematics 2026, 14, 761. https://doi.org/10.3390/math14050761

ИФ: 2.2, Q1, WoS

5. Nikolay D. Dimitrov, Jagan Mohan Jonnalagadda, Existence results for a coupled system of nabla fractional equations with summation boundary conditions, Fractal and Fractional 2026, 10, 76 https://www.mdpi.com/2504-3110/10/2/76

ИФ: 3.3, Q1, WoS

6. Nikolay D. Dimitrov, Jagan Mohan Jonnalagadda, Positive solutions for nabla fractional three-point boundary value problems, Mathematics 2026, 14, 1086. https://www.mdpi.com/journal/mathematics

ИФ: 2.2, Q1, WoS

7. Zhivkov, P.; Chen, E. Dynamic Fee Markets at Sub-Second Timescales: Adapting EIP-1559 for High-Throughput Blockchains. Mathematics 2026, 14, 1232. https://www.mdpi.com/2227-7390/14/7/1232
ИФ: 2.2, Q1, WoS

8. Zhivkov, P.; Todorov, V.; Georgiev, S. Temporal dynamics of market microstructure in cryptocurrency perpetual futures: econometric evidence from centralized and decentralized exchanges. Int. J. Financial Stud. 2026, 14 https://www.mdpi.com/2227-7072/14/5/103
ИФ: 2.2, Q2, WoS

9. Georgiev, S.; Markova, M.; Mihova, V.; Todorov, V. modeling and optimization of deep and machine learning methods for credit card fraud risk management. Mathematics 2026, 14, 1496, https://www.mdpi.com/2227-7390/14/9/1496
ИФ: 2.2, Q1, WoS

10. Koleva, M.N.; Vulkov, L.G. Inverse Boundary Conditions Interface Problem for Tempered Fractional Ordinary Differential Equations. Mathematics 2026, 14, 1711. https://doi.org/10.3390/math14101711
ИФ: 2.2, Q1, WoS

11. Sapundzhi, F.; Georgiev, S.; Georgiev, I.; Todorov, V. Forecasting Solar Energy Production Through Modeling of Photovoltaic System Data for Sustainable Energy Planning. Appl. Sci. 2026, 16, 5053 https://www.mdpi.com/2076-3417/16/10/5053
ИФ: 2.5, Q2, WoS

12. Dorokhova, L., Beloeva, S., Venelinova, N., Mirzoiev, D. (2026). Comparative scoring of local travel agencies and tour operators' websites: the cases of Estonia and Bulgaria. Access to science, business, innovation in digital economy, ACCESS Press, 7(2), 376-395, https://doi.org/10.46656/access.2026.7.2(7)
ИФ: 0.6, Q4, WoS

13. Todorova, A., Kostadinova, I., Ruskova, S., Beloeva, S. (2026). Burnout Risk Management Framework (BRMF) in Project-Based Organizations: Emotional Intelligence Systemic Lever. Systems, 14(2), 210. https://doi.org/10.3390/systems14020210
ИФ: 1.91, Q1, WoS

14. Todorova, A.(2026). Emotionally Intelligent Artificial Intelligence in Marketing: A Comparative Analysis of Consumer and Marketer Attitudes.TEM Journal, 15(1), 176-189. DOI: 10.18421/TEM151-16
ИФ: 0.18, Q4, WoS

15. Todorova, A., Kostadinova, I., Stefanova, S. (2026). Artificial Intelligence for Improving Drivers' Emotional Intelligence: An Innovative Approach for Safer Roads. In: Bernardino, J., et al. Knowledge Discovery, Knowledge Engineering and Knowledge Management. IC3K 2024. Communications in Computer and Information Science, vol 2703. Springer, Cham. https://doi.org/10.1007/978-3-032-06878-1_16
WoS

16. Erdem, M.,Özdemirр A., Kosunalp, h. Y., and B. Stoycheva. (2026). Analysing Digital Government Performance Indicators Using a Clustering Technique-Embedded Fuzzy Decision-Making Framework. Journal Mathematics Special Issue Advances in Multiple-Criteria Decision Making: New Trends and Applications. https://doi.org/10.3390/math14071233
ИФ: 2.08, Q1, WoS

17. Tekin, E., & Stoycheva, B. (2026). Algorithmic Management and the Social Sustainability of Employment Relations: Representationless Governance in Platform Courier Labor. Sustainability, 18(10), 5011. https://doi.org/10.3390/su18105011
ИФ: 0.67, Q3, WoS

ДРУГИ

(в процес на рецензиране, приети за публикуване,
с предстоящо индексиране в WoS)

1. Sapundzhi, F., Chikalov, A., Georgiev, S., Georgiev, I., Todorov, V. Robust time series analysis for forecasting photovoltaic energy yield. E3S Web of Conferences 638, 02003 (2025) https://doi.org/10.1051/e3sconf/202563802003

2. Muhenga, R.; Sapundzhi, F.; Popstoilov, M.; Georgiev, S.; Todorov, V. comprehensive analysis of cryptographic algorithms: implementation and security insights. Eng. Proc. 2025, 104, 43. https://doi.org/10.3390/engproc2025104043

3. Sapundzhi, F.; Vezyuv, D.; Georgiev, S.; Nikolaev, I. Application and development of CAD/CAM technologies in the modern metalworking industry. Eng. Proc. 2026, 122, 22. https://doi.org/10.3390/engproc2026122022

4. Ivan Georgiev, Borislav Chakarov, Slavi Georgiev, A Multicriteria Optimization Approach for Investment Project Funding, Baltic Journal of Economic Studies, submitted.

5. A. Atanasov, M. Koleva and L. Vulkov, Inverse modeling of soil moisture dynamics using data from an IoT-based agrometeorological sensor station, 2025 6th International Conference on Communications, Information, Electronic and Energy Systems (CIEES), Ruse, Bulgaria, 2025, pp. 1-6, https://ieeexplore.ieee.org/document/11300195

6. F. Sapundzhi, M. Popstoilov, T. Bakardjieva, S. Georgiev, I. Georgiev, A. Ivanova, G. Georgiev, M. Lazarova, Integration of IoT and network technologies for the design of escape rooms, 2025 6th International Conference on Communications, Information, Electronic and Energy Systems (CIEES), Ruse, Bulgaria, 2025, pp. 1-5. https://ieeexplore.ieee.org/document/11300063

7. F. Sapundzhi, E. Jovanova, M. Popstoilov, S. Georgiev, I. Georgiev, Ts. Stefanova, V. Todoro, An integrated approach to evaluating e-commerce platforms using postman and selenium, 2025 6th International Conference on Communications, Information, Electronic and Energy Systems (CIEES), Ruse, Bulgaria, 2025, pp. 1-6, https://ieeexplore.ieee.org/document/11300003

8. A. Ivanova, T. Bakardjieva, Z. Nikitina, A. Ivanova, F. Sapundzhi and S. Georgiev, A conceptual framework for cyberattack analysis in hospital networks: integrating internet of medical things and regulatory perspective, 2025 6th International Conference on Communications, Information, Electronic and Energy Systems (CIEES), Ruse, Bulgaria, 2025, pp. 1-6, https://ieeexplore.ieee.org/document/11300149

9. Stefka Fidanova, Jelenko Stanchov, Maria Ganzha, Knitwear production scheduling, Proceedings of the 20th Conference on Computer Science and Intelligence Systems (FedCSIS) pp. 693–697. https://doaj.org/article/33242744a6cd4639bef5b5a3f30dc5a1

10. Julia Chaparova, Teodor Georgiev, Travelling wave solutions for a two-species competitive model in ecology, Springer Proceedings in Mathematics & Statistics, in press.

11. Georgi Georgiev, Slavi Georgiev, Katina Kisyova, Modelling the trajectories of bloodstain on the crime scene, using mathematical reconstruction method, Springer Proceedings in Mathematics & Statistics, in press.

12. Svetoslav Hadzhiivanov, Slavi Georgiev, Borislav Chakarov, Juri Kandilarov, Venelin Todorov, Optimized algorithmic grid strategy trading in cryptomarkets, Springer Proceedings in Mathematics & Statistics, in press.

13. Fatima Sapundzhi, Georgi Galchin, Slavi Georgiev and Juri Kandilarov, A digital-robotic adaptive learning environment for supporting children with SEN in early geometry education, 16th International Conference on Methodologies and Intelligent Systems for Technology Enhanced Learning (MIS4TEL 2026), в Lecture Notes in Networks and Systems, Springer, submitted.

14. Nikolay Dimitrov, Paula Cambeses-Franco, Existence results for higher-order perturbed problems with applications to third-order problems with sign-changing Green's functions, Filomat, in press.

15. Antonina Ivanova, Georgi Kolev, Fatima Sapundzhi, Teodora Bakardjieva, Slavi Georgiev, Integration of large language models in layered software systems: a clean architecture and cqrs case study, 5th International Conference on Electronics, Engineering Physics and Earth Science (EEPES), 24 – 27 June, 2026, Bandırma, Türkiye, MDPI Engineering Proceedings, submitted

16. Alexandr Tereshkov, Fatima Sapundzhi, Antonina Ivanova, Slavi Georgiev, Robust ambulance dispatch using graph-based optimization under traffic uncertainty: a case study of Prague, 5th International Conference on Electronics, Engineering Physics and Earth Science (EEPES), 24 – 27 June, 2026, Bandırma, Türkiye, MDPI Engineering Proceedings, submitted

17. Fatima Sapundzhi, Slavi Georgiev, Ivan Georgiev, Venelin Todorov, Ivan Georgiev, Borislav Chakarov, Slavi Georgiev, Forecasting Solar Energy Production through Modeling of Photovoltaic System Data for Sustainable Energy Planning, Applied Sciences, accepted.

18. Fatima Sapundzhi, Metodi Popstoiolov, Slavi Georgiev, Venelin Todorov, Structure-Based Drug Modeling Using Intelligent Algorithms and Molecular Data, Advanced Computing in Industrial Mathematics, Studies in Computational Intelligence, Springer, submitted.

19. Peter Tsonkov , Fatima Sapundzhi, Slavi Georgiev, Intelligent Logic Design Strategies for Distributed IoT Environments with Robotic Support, 5th International Conference on Electronics, Engineering Physics and Earth Science (EEPES), 24 – 27 June, 2026, Bandırma, Türkiye, MDPI Engineering Proceedings, submitted.

20. Miglena N. Koleva, Lubin G. Vulkov, A coefficient inverse problem for a diffusion-relaxation model on disjoint domains, submitted.

21. Simeonova, I., D. Antonova. (2025). Role of the Professional Human Factor in the Application of Artificial Intelligence in Personalized Medicine. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 1-6, doi: 10.1109/EEAE65901.2025.11273647.

22. Saraliev, Z., D. Antonova. (2025). Integrated Quality Management and Digitalization Model in the Creative Industries. 10th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE), Stara Zagora, Bulgaria, 2025, pp. 1-7, doi: 10.1109/EEAE65901.2025.11273681.

23. Beloeva, S., Antonova, D. (2025). Effect of Controlled Anxiety in an Academic Environment on the Creativity of Doctoral Students. In: Silhavy, R., Silhavy, P. (eds) Research Perspectives on Software Engineering and Systems Design. CoMeSySo 2024. Lecture Notes in Networks and Systems, vol 1491. Springer, Cham. https://doi.org/10.1007/978-3-031-96380-3_31

24. Antonova, D., T. Totev. (2026). Concept for Organizing and Using Internal Funds for Corporate Social Development. 20th International Conference on Business Excellence Leading Change in Disruptive Times (Bucharest, Romania), March 2026. ПОД ПЕЧАТ.

25. Antonova, D., Z. Saraliev. (2026). Necessity of a systemic management approach to increase the quality and sustainability of the creative industries in Bulgaria. 20th International Conference on Business Excellence Leading Change in Disruptive Times (Bucharest, Romania), March 2026. ПОД ПЕЧАТ.

26. Venelinova, N., S. Beloeva. (2025). New Perspective for Inclusive and Person-centered Education for Dyslexic Students: Insights from Bulgaria (book chapter). In: Intellectual and Learning Disabilities - Inclusive Practices and Challenges. ISBN 978-1-83634-944-0, DOI: 10.5772/intechopen.1012559

27. Beloeva, S., Levakov, I., Venelinova, N., Akhmedov, A., & Makhmudov, M. (2026). AI-Driven Remarketing and Digital Infrastructure in Emerging Markets: Evidence from Tourism and Textile Enterprises in Uzbekistan. Sustainability, 18(11), 5739. https://doi.org/10.3390/su18115739

28. Bakracheva, M., Ivanova, E., Pavlov, D., & Kariyev, A. (2026). Bright and dark traits as predictors of altruism. Veredas Do Direito, 23(7), e235721. https://doi.org/10.18623/rvd.v23.5721

29. Bratoeva, Ev., N. Sabev. (2025). Health determinants – social spectrum, significance and emphasis. Veredas Do Direito, 22(4), e223440. https://doi.org/10.18623/rvd.v22.n4.3440

30. Bratoeva, E. (2025). SOCIAL AND PSYCHOSOCIAL DETERMINANTS OF ILLNESS AND WORK ABSENTEEISM: AN INTEGRATED ANALYSIS OF HEALTH AND ORGANIZATIONAL INFLUENCE. Veredas Do Direito, 22(4), e223536. https://doi.org/10.18623/rvd.v22.n4.3536

30. Bratoeva, E., & Beloeva, S. (2026). Level of awareness and seeking support among individuals with substance dependence. Veredas Do Direito, 23, e234892. https://doi.org/10.18623/rvd.v23.4892

31. Bratoeva, E., & Beloeva, S. (2026). Psychoactive substances and aging: trends, consequences, and interventions in individuals over 65 years. Veredas Do Direito, 23, e234893. https://doi.org/10.18623/rvd.v23.4893

32. Bratoeva, E., S. Ruskova. (2026). A study of intrinsic motivational factors influencing work quality and job satisfaction among employees in the social sector. 20th International Conference on Business Excellence Leading Change in Disruptive Times (Bucharest, Romania), March 2026. ПОД ПЕЧАТ.

33. Kunev, S., D. Antonova, S. Ruskova. (2025). An Approach Stimulating the Competitiveness and Sustainable Development of Academic Institutions: Implementation and Results. МНК „Industrial Growth Conference 2024", 27–29 September 2024, Bulgaria, https://doi.org/10.53656/igc-2024.30

34. Totev, T., S. Kunev. (2026). From Projects to Results: An Approach for Qualitative Assessment of Implemented Projects (The Case of Ruse Municipality, Bulgaria). 20th International Conference on Business Excellence Leading Change in Disruptive Times (Bucharest, Romania), March 2026. ПОД ПЕЧАТ.

35. Tamasila, I., D. Pavlov, A. Todorova, I. Taucean, A. Diaconescu (2024). Comparative Study of the Relationship between Social Intelligence and Entrepreneurial Intentions of Students from Bulgaria and Romania Entrepreneurship - Digital Transformation, Education, Opportunities and Challenges, , 1-16, doi: 10.5772/intechopen.1005840

36. Puiu, S., Alieva, D., & Pavlov, D. (2026). Gender Equity and Sustainable Development Goals: Cases From Uzbekistan. Veredas Do Direito, 23(6), e235471. https://doi.org/10.18623/rvd.v23.5471

37. Zagorcheva, D., D. Pavlov, A. Karpach, D. Alieva, Y. Murzina. (2026). Family as a source of emotional health and entrepreneurial support. The journal Veredas do Direito (ISSN 2179-8699). ПОД ПЕЧАТ.

38. Spasova, D., Ruskova, S., Antonova, D., Kunev, S. (2025). Building Co-Governance Networks Based on the Co-Management Approach - A Way to Achieving Sustainable Development. In: Silhavy, R., Silhavy, P. (eds) Research Perspectives on Software Engineering and Systems Design. CoMeSySo 2024. Lecture Notes in Networks and Systems, vol 1491. Springer, Cham. https://doi.org/10.1007/978-3-031-96380-3_21

39. S. Bespalyy, G. Alnazarova, P. Vitliemov, A. Petrenko, A. Kaptsov and B. Stoycheva. (2024). Increasing Student Motivation in Engineering Bachelor and Master Programes through Problem-Based Learning for Sustainable Development Goals," 2024 5th International Conference on Communications, Information, Electronic and Energy Systems (CIEES), Veliko Tarnovo, Bulgaria, 2024, pp. 1-6, doi: 10.1109/CIEES62939.2024.10811291. https://ieeexplore.ieee.org/document/10811291

40. Ruskova, S., S. Kunev. (2026). Study of the impact of digital change on stress level in an educational organization. 20th International Conference on Business Excellence Leading Change in Disruptive Times (Bucharest, Romania), March 2026. ПОД ПЕЧАТ.

41. Stoycheva, B., D. Antonova. (2025). Impacts in the management of innovative products in manufacturing organizations. МНК „Industrial Growth Conference 2024", 27–29 September 2024, Bulgaria, https://doi.org/10.53656/igc-2024.15

42. Stoycheva, B., H. Sokolova. (2026). Digitalization as a Strategic Tool for the Sustainable Development of Organizations. 20th International Conference on Business Excellence Leading Change in Disruptive Times (Bucharest, Romania). ПОД ПЕЧАТ.

43. Sokolova, H., B. Stoycheva. (2026). Digital Transformation and Cross-cultural Positioning in Bulgarian Cultural Organizations. ПОД ПЕЧАТ.

44. Selma Bulut, S., MÜLAYİM, Beyza Buzol, and Stoycheva, B. (2026). Comparative Evaluation of AI-Assisted Systematic Literature Reviews: NotebookLM, ChatGPT-4o, and Gemini 1.5 Pro in Wearable Technology, Smart Textiles and Sustainable Fashion Research. International Conference on Electronics, Engineering Physics and Earth Science (EEPES 2026). ПОД ПЕЧАТ.

45. Selma Bulut, S., MÜLAYİM, Beyza Buzol, and Stoycheva, B. (2026). Artificial Intelligence and Digital Transformation Discourse in Sustainability Reporting: A Non-Parametric Analysis of Turkish Textile Firms. International Conference on Electronics, Engineering Physics and Earth Science (EEPES 2026). ПОД ПЕЧАТ.

46. Todorova, А., I. Kostadinova, D. St. Srbinoska. (2024). Student Attitudes towards the Circular Economy: A Comparison between Bulgaria and North Macedonia. 7th International Conference on Economics and Social Sciences (icESS 2024)

47. Todorova, А., S. Ruskova. (2024). Empathy in Marketing: A Customer-Oriented Approach Based on Authenticity. 7th International Conference on Economics and Social Sciences (icESS 2024)

48. Todorova, A., I. Kostadinova, S. Stefanova (2024). Developing an Artificial Intelligence Model to Enhance the Emotional Intelligence of Motor Vehicle Drivers for Safer Roads 16th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (KMIS 2024), , 339-346, doi: 10.5220/0013051400003838, https://www.scitepress.org/Papers/2024/130514/130514.pdf

49. Todorova, A., I. Kostadinova, S. Ruskova. (2025). Sustainable Business Models and their Impact on Consumer Behaviour and Motivation. In: Consumer Behavior - Micro, Meso, and Macro Perspectives [Working Title]. IntechOpen. Available at: http://dx.doi.org/10.5772/intechopen.1010166.

50. Todorova, A. and Kostadinova, I. (2025). Integration of Emotionally Intelligent Artificial Intelligence into Neuromarketing: Attitudes, Opportunities, Challenges. In Proceedings of the 17th International Conference on Agents and Artificial Intelligence - Volume 1: ICAART; ISBN 978-989-758-737-5; ISSN 2184-433X, SciTePress, pages 359-366. DOI: 10.5220/0013145200003890, https://www.scitepress.org/publishedPapers/2025/131452/pdf/index.html

51. Todorova, A. (2026). Emotionally Intelligent Artificial Intelligence in Marketing: A Comparative Analysis of Consumer and Marketer Attitudes.TEM Journal, 15(1), 176-189. DOI: 10.18421/TEM151-16. ПОД ПЕЧАТ.

52. Todorova, A., I. Kostadinova. (2026). Drivers and Barriers of AI-Powered Chatbot Adoption: An Empirical Study on the Digital Transformation of Bulgarian Entrepreneurship (book chapter). In: Communications in Computer and Information Science, Springer. ПОД ПЕЧАТ.

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​Научни публикации за 2024 г.

Научни публикации за 2025 г.

Научни публикации за 2026 г.

ДРУГИ

(в процес на рецензиране, приети за публикуване,с предстоящо индексиране в WoS)

Резултати

Научни публикации за 2024 г.

(в процес на рецензиране, приети за публикуване,
с предстоящо индексиране в WoS)