Fourth workshop on Soliton Theory, Nonlinear Dynamics and Machine Learning

24 Aug 2026, 09:00 → 29 Aug 2026, 15:30 Europe/Sofia

Welcome to the website of the Fourth Workshop on Soliton Theory, Nonlinear Dynamics and Machine Learning !

The workshop will take place from 24th to 29th of August, 2026 at the Black Sea Coast in the town of Tsarevo, Bulgaria. The event can be attended either on-site or online via the Internet. Follow the link of this video presentation to get a glipse of Tsarevo and its natural surroundings.

Please consider the First Announcement and the Second Announcement for more information.

The online participation is accessible via Zoom at https://nbu-bg.zoom.us/j/85716039350 .

 

Below you can find the book of the abstracts of the talks.

Organized by:

• Trakia University, Stara Zagora
• Institute for Advanced Physical Studies

Scientific committee:

• Vladimir Gerdjikov
• Radu Constantinescu
• Stoytcho Yazadjiev
• Aurelian Isar
• Rossen Ivanov
• Stoyan Mishev
• Yassen Gorbounov

Local organizing committee:

• Stoyan Mishev
• Radoslav Ginin

Previous editions of the workshop:

 

 

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book-of-abstracts-tsarevo-2026.pdf

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Monday, 24 August

13:00 → 23:59 ARRIVAL

Tuesday, 25 August

09:30 → 10:00 OPENING

10:00 → 10:45 Higher-dimensional integrable systems. Algebraic aspects and reductions.

Speaker: Aleksander Stefanov

10:45 → 11:00 Coffee break

11:00 → 11:45 MNLS and Generalized Fourier Transforms for Constant Boundary Conditions

Speaker: Vladimir Gerdjikov

11:45 → 12:30 Classification on line solitons of KP type integrable systems

Speaker: Li Chuanzhong

12:30 → 14:30 LUNCH

14:30 → 15:10 Characterization of Riemannian and Lorentzian Manifolds via the Jacobi Operator

Speaker: Veselin Videv

15:10 → 15:40 Solitons and Spirals: Connections in Nonlinear Dynamics and Biology

Speaker: Nikola Pirovski

15:40 → 16:00 Coffee break

16:00 → 18:00 General discussion

Wednesday, 26 August

09:30 → 10:10 Design and Permanent Magnets Reduction of Linear Oscillatory Machine for Reciprocating Drives

Speaker: Matúš Horník

10:10 → 10:40 Unsupervised Vibration Fault Detection Using Hilbert-Huang Transformation-Based Feature Extraction and Mahalanobis Analysis

Speaker: Atanas Kolev

10:40 → 11:00 Coffee break

11:00 → 11:40 Universal Multi-Phase Inverter Platform for Advanced Motor Control

Speaker: Tomáš Podušel

11:40 → 14:00 LUNCH

14:00 → 14:30 Forward-Collision and Lane-Departure Warning on Edge AI Accelerators: A Cross-Device Evaluation of Raspberry Pi 5 and Jetson Orin Nano Super.

Speaker: Lyuben Temelakiev

14:30 → 15:00 Beyond Pass Completion: Automated Detection of Line-Breaking Passes in Association Football Using Limb Tracking Data and Their 3D Perceptual Reconstruction and Visualization

Speaker: Vladislav Manolov

15:00 → 15:30 Axion contribution to the mass-radius relation of neutron stars

Speaker: Momchil Naydenov

15:30 → 15:50 Coffee break

15:50 → 18:00 General discussion

20:00 → 22:00 OFFICIAL DINNER

Thursday, 27 August

09:30 → 10:10 Negative and rational flows of the integrable hierarchies

Speaker: Rossen Ivanov

10:10 → 10:40 Derivation of the Nonlinear Schrodinger Equation in the Intermediate Long Wave Regime

Speaker: Lyudmila Ivanova

10:40 → 11:00 Coffee break

11:00 → 11:40 Necessary and sufficient conditions for an equation to accept a given type of solutions

Speaker: Alina Pauna

11:40 → 12:10 Scalable Approximation of Laplacian Eigenmodes for Spectral Routing in Service-Provider Networks

Speaker: Hristo Vekov

12:10 → 14:00 LUNCH

14:00 → 14:40 On the derivative nonlinear Schr"odinger equation related to symmetric spaces

Speaker: Georgi Grahovski

14:40 → 15:10 SOME NEW RESULTS INVOLVING INEQUALITIES OF GRONWALL−BELLMAN TYPE

Speaker: Lubomir Markov

15:10 → 15:40 Soliton and Periodic Wave Solutions of the Modified Korteweg–de Vries Equation

Speaker: Rossitza S. Marinova

15:40 → 16:10 Extreme Events in Soliton Turbulence in Nonintegrable Systems

Speaker: Marcelo Flamarion

16:10 → 16:50 Time Reparametrization Invariance and the Hubble Tension

Speaker: Vesselin Gueorguiev

16:50 → 17:10 Coffee break

17:10 → 18:00 General discussion

Friday, 28 August

09:30 → 10:10 GENERATION OF QUANTUM CORRELATIONS IN GAUSSIAN OPEN QUANTUM SYSTEMS

Speaker: Aurelian Isar

10:10 → 10:30 Coffee break

10:30 → 11:10 Gaussian entanglement and steering of strongly coupled bosonic modes in a common phase-sensitive environment

Speaker: Tatiana Mihaescu

11:10 → 11:50 Cooperative Effects in Two Dipole–Dipole Coupled Emitters Driven by a Moderately Strong Laser Field

Speaker: Alexander Cudreasov

11:50 → 14:00 LUNCH

14:00 → 14:40 Data-Driven Multi-Objective Optimization for Smart Urban Distribution Networks

Speaker: Mirkomil Melikuziev

14:40 → 15:20 Methodology for the Migration and Acceleration of an Open-Source Semiconductor Bloch Equation Solver Using Multi-Core CPU and GPU/CUDA Computing

Speaker: Georgi Petrov

15:20 → 16:00 Transient and Steady-State Dynamic Modeling of Synchronous Machine: TSFEM and the Winding Function Method

Speaker: Aldin Kajević

16:00 → 16:20 Coffee break

16:20 → 18:00 General discussion

Saturday, 29 August

09:30 → 10:10 Machine Learning on Symmetric Spaces. Basics.

Speaker: Stoyan Mishev

10:10 → 10:40 Machine Learning on Symmetric Spaces. Structure of a Neural Network.

Speaker: Yoana Foteva

10:40 → 11:00 Coffee break

11:00 → 11:30 Training Bulgarian Language Embeddings from Scratch through Self-Supervised Learning and Contrastive Learning

Speaker: Nikola Blajev

11:30 → 12:00 Comparative Study of Static Heterogeneous Graph Neural Networks and XGBoost for Credit Card Fraud Detection

Speaker: Krassimir Djounakov

12:00 → 12:20 CLOSING