Institute of Mathematics and Informatics 





Scientific ProgramTuesday, June 14^{th}
9:3013:00 SESSION 1: APPLICATIONS IN MATHEMATICAL PHYSICS
9:3010:30 Invited Plenary Talk Stoycho Yazadjiev, New fully nonlinear dynamical mechanism for formation of scalarized black holes
10:30 – 11:00 Coffee Break
11:00 – 11:30 Nikolay Vitanov, Simple Equations Method (SEsM): Areas of Possible Applications
11:30 – 12:00 Zlatinka Dimitrova, An Example for Application of the Simple Equations Method for the Case of Use of a Single Simple Equation
12:00 – 12:30 Tzanko Donchev, Dimitar Kolev, Mihail Kolev, Alina Lazu, Parabolic equations with casual operators
12:30 13:00 Yoshihiro Mochimaru, Search of complex transcendental roots of combination of a nonlinear equation and a polynomial
13:00 – 14:00 Lunch Break
14:0016:30 SESSION 2: APPLICATIONS IN NEUROSCIENCES
14:00 – 15:00 Invited Plenary Talk Alon Ascoli, A Circuit and SystemTheoretic Exploration of the Potential of Memristors with Negative Differential Resistance Effects for the Design of BioInspired Computing Networks
15:00 – 15:30 Coffee Break
15:30 – 16:00 Anastasia Butorova, Alexander Buevich, Andrey Shichkin, Alexander Sergeev, Elena Baglaeva, Marina Sergeeva, Irina Subbotina, Julian Vasilev, Prediction of the time series by the various types of artificial neural networks by the example of different time intervals of the content of methane in the atmosphere
16:00 – 16:30 Anastasia Butorova, Elena Baglaeva, Irina Subbotina, Marina Sergeeva, Alexander Sergeev, Andrey Shichkin, Alexander Buevich, Pavel Petrov, Application of the wavelet data transformation for the time series forecasting by the artificial neural network
16:30 18:30 SESSION 3: PROFESSOR TODOR GENCHEV 90 ANNIVERSARY
16:30 – 17:00 Nedyu Popivanov, Memories of Professor Todor Genchev
17:00 – 17:30 Petar Popivanov, Some results of Professor Todor Genchev
17:30  18:00 Nikolaj Kutev, Tsviatko Rangelov, Null noncontrollability for singular and degenerate heat equation with double singular potential
18:00 – 18:30 Nikolaj Kutev, Milena Dimova, Natalia Kolkovska, Global Behavior of the Solutions to Nonlinear Wave Equation with Sign changing Nonlinearity
19:00 Welcome party
Wednesday, June 15^{th}
9:0010:00 SESSION 4 9:00 – 10:00 Invited Plenary Talk Li Ma, SigmaPorous media flow and Yamabe flow
10:30 – 11:00 Atanas Atanasov, Slavi Georgiev, Parameter Recovery Study of Honeybee Colony Failure due to Nutritional Issues
11:00 – 11:30 Elena Nikolova, Dynamical Modeling of Competition between Three Basic Power Plants Types
11:30 – 12:00 Anna Coletti, On JansenRit System Modeling Epilepsy Phenomena
12:00 – 12:30 Laura Manca, E.L. Santarcangelo, E. Bonanni, L. Sebastiani, G. Siciliano, V. Georgiev, Hypnotizabilityrelated Differences in the Bach’s Music Processing, based on the Analysis of Electroencephalographic Signal
12:30 – 13:00 Iordanka Panayotova, Maila BrucalHallare, Oncolytic virus vs cancer: Modeling and Simulation of Virotherapy with Differential Equations
13:00 – 14:00 Lunch Break
14:00 – 16:00 SESSION 6: APPLICATIONS IN NEUROSCIENCE 14:0014:30 Maya Markova, Credit Card Fraud Detection using Long Short Term Memory Network Model
14:3015:00 Venelin Todorov, Ivan Dimov, Rayna Georgieva, Advanced biased stochastic approaches based on modified Sobol sequences for Fredholm integral equations
15:00 – 16:00 Invited Plenary Talk Ronald Tetzlaff, BioInspired LocallyActive Memristor Circuit Analysis and Design
16:00 – 16:30 Coffee Break
16:3018:00 SESSION 7: PRESENTATION OF CENTER OF EXCELLENCE 16:3017:00 Angela Slavova, Presentation of Center of Excellence Informatics, Information and Communication Technologies
17:00 17:30 Tsviatko Rangelov, Petia Dineva, Green‘s function and wave scattering for inhomogeneous antiplane PEM half–plane
17:30 – 18:00 Nikolaj Kutev, Sonia Tabakova, A note on the steady Poiseuille flow of CarreauYasuda fluid
18:00 – 19:30 SESSION 8: APPLICATIONS IN FINANCIAL MATHEMATICS
18:00 – 18:30 Vilislav Boutchaktchiev, Ivan Jordanov, Models for Measuring and Forecasting the Inferred Rate of Default
18:30 – 19:00 Maya Markova, Forex Time Series Forecasting using Hybrid Convolutional Neural Network/Long ShortTerm Memory Network Model
19:00 – 19:30 Ivan Georgiev, Victoria Deninska, Vesela Mihova, Velizar Pavlov, Diversification and Optimization of the Financial Portfolio in Times of Uncertainty
Thursday, June 16^{th}
9:0010:00 SESSION 9 Invited Plenary Talk Vladimir Georgiev, ChernSimonsSchrödinger Equations in Mass Supercritical Case
10:00 – 10:30 Coffee Break
10:3013:00 SESSION 10: APPLICATIONS IN FRACTIONAL ANALYSIS
10:30 – 11:00 Snezhana Hristova, Conditional boundedness of generalized proportional Caputo fractional differential equations
11:0011:30 Tzanko, Donchev, Snezhana Hristova, Practical stability of generalized proportional Caputo fractional differential equations by Lyapunov functions
11:3012:00 Tzanko Donchev, Nikolay Kitanov, Alina I. Lazu, Stanislav Stefanov, Nonlinear evolution inclusions with causal operators
12:0012:30 Teodora Zapryanova, Nonpositivity of Operators G_{s,n}+ 12:30 – 13:00 Maria Vasileva, Nikolay Kyurkchiev, Some notes on Arcsine ExponentiatedX Family
13:00 – 14:00 Lunch Break
14:00 15:00 SESSION 11: APPLICATIONS IN NEUROSCIENCE 14:0014:30 Snezhana Hristova, Kremena Stefanova, Discrete neural networks with maximum and noninstantaneous impulses with computer simulation
14:30 15:00 Venelin Todorov, Slavi Georgiev, Highly accurate scrambled stochastic approaches for multidimensional sensitivity analysis in air pollution modeling
15:00 – 15:30 Coffee Break
15:3017:30 SESSION 12: APPLICATIONS IN MATHEMATICAL PHYSICS 15:3016:00 Nikolaj Vitanov, Special Functions and Polynomials connected to the Simple Equations Method (SEsM)
16:0016:30 Zlatinka Dimitrova, An Example for Application of the Simple Equations Method for the Case of Use of a Two Simple Equations
16:3017:00 Mirko Tarulli, Elena Nikolova, George Venkov, On the Well Posedness the Complex GinzburgLandau Equation on the Product Manifold
17:00 – 17:30 Elena Nikolova, Mila Chilikova – Lubomirova, Exact Traveling Wave Solutions of the Generalized Rosenau–KawaharaRLW Equation Arising in Fluid Mechanics
19:00 Official Dinner
Friday, June 17^{th} 9:0010:00 SESSION 13: APPLICATIONS IN MATHEMATICAL BIOLOGY
9:00 – 9:30 Irina Volinsky, Stability Analysis of a Mathematical Model of Hepatitis B Virus with Control on Immune System
9:30 – 10:00 Atanas Atanasov, Miglena Koleva, Lubin Vulkov, Numerical Analysis of Honey Bee Colonies in Winter by Signchanging Chemotactic Coefficient Model
10:00 – 10:30 Coffee Break
10:30 – 13:00 SESSION 14: APPLICATIONS IN MATHEMATICAL PHYSICS
10:30 – 11:00 Nazli Irkil, Erhan Piskin, Well Posedness of Solutions for a Degenerate Viscoelastic Equation for Kirchhofftype with Logarithmic Nonlinearity
11:00 – 11:30 Gaukhar Shaikhova, Araylym Syzdykova, Ratbay Myrzakulov, Analytical solutions for the two dimensional nonlinear equations reduced from the AKNS hierarchy
11:30 – 12:00 Nazli Irkil, Global nonexistence result of solutions for a riser equation with logarithmic source term and damping
12:00 – 12:30 Petar Popivanov, Boundary Value Problems for the Polyharmonic Operators
12:30 – 13:00 Sergey Popov, A boundary value problem for forwardbackward parabolic equations
13:00 – 14:00 Lunch Break
14:00 – 16:00 SESSION 15: APPLICATIONS IN FINANCIAL MATHEMATICS
14:00 – 14:30 Elitsa Raeva, Velizar Pavlov, Comparison of the Growth Between the Number and the Payments of IBNR Claims with Chain Ladder Method
14:30 – 15:00 Vesela Mihova, Virginia Centeno, Ivan Georgiev, Velizar Pavlov, Comparative Analysis of ARIMA and Modified Differential Equation Approaches in Stock Price Prediction and Portfolio Formation
15:00 – 15:30 Teodora Klimenko, Velizar Pavlov, Simulating Stochastic Differential Equations in Option Pricing
15:30 – 16:00 Iliana Raeva, Ivan Georgiev, Multicriteria Optimization Approach for Investment Project Financing Evaluation and Decision Making
16:00 – 18:00 SESSION 16: APPLICATIONS IN NEUROSCIENCE
16:00 – 16:30 Atanaska Georgieva, Applications of Sawi Decomposition Method for Solving Nonlinear Volterra Fuzzy Integral Equations
16:30 – 17:00 Atanaska Georgieva, Iva Naydenova, Double Natural Transform to Solve Volterra Fuzzy Integral Equations
17:00 – 17:30 Atanaska Georgieva, Mira Spasova, On Solution of Convolution Type Volterra Fuzzy IntegroDifferential equations
17:30 – 18:00 Vesselin Kyurkchiev, Anton Iliev, Asen Rahnev and Nikolay Kyurkchiev, On a piecewise smooth Gompertz growth function. Applications
18:00 Closing Ceremony


Last modified: 
20220109 
Archive: 2021 