The annual reporting session of the Department of "Software Technologies and Information Systems" will be held on Tuesday, December 2, in room 278 at 11:00 a.m. PROGRAM
The next session of the ICMS seminar will take place on Tuesday, December 2, 2025. Talks will be delivered by Roy Magen from ICMS and Liviu Ornea from the University of Bucharest, with the second talk being presented within a joint session with the seminar of the Analysis, Geometry and Topology Department. The program is as follows. ICMS Seminar and AGT Seminar Tuesday, December 2nd, room 403 IMI-BAS. 13:00 -- Roy Magen (ICMS, IMI-BAS) Flavours of homotopy theory 14:00 -- Liviu Ornea (University of Bucarest) Distinguished non-Kähler metrics on compact complex manifolds Abstract (Magen): In this talk we will consider different flavours of homotopy theory for different types of geometric contexts. First we will recall the usual definitions of the homotopy category, and equivariant […]
It is a great pleasure to announce a talk entitled SL2 tropicalizations through valuation algebra by Andrei Benguş-Lasnier (IMI-BAS) who will speak at the Geometry Seminar of ICMS on next Wednesday (3rd of December) at 14:00 in room 403 and via zoom. More details can be found here: https://icms.bg/sl2-tropicalizations-through-valuation-algebra-geometry-seminar-talk-by-andrei-bengus-lasnier/ Zoom link: https://us02web.zoom.us/j/86186281353?pwd=6CARUygJaA3HiTNAt3norZQRFt8fIL.1
The National Coding Theory workshop with international participation "Profesor Stefan Dodunekov" will be held from 4th to 7th December 2025 in St. Ekaterina Garden Hotel in the village of Ribaritsa. The scientific program will be held on December 5th and 6th and will include short talks (up to 20 minutes), thesis presentations (up to 40 minutes) and discussions. To participate in the scientific program, please send a title and a short abstract (up to one page) to Peter Boyvalenkov, peter@math.bas.bg, and to Tsonka Baicheva, tsonka@math.bas.bg, before 23.11.2025. The workshop includes the annual reports session of the Mathematical Foundations of Informatics Department, IMI-BAS, too. PROGRAMME
Workshop on Recent Developments in Modern Hodge Theory December 5 - 12, 2025, Room 403 of IMI - BAS This conference will survey some new results in modern Hodge theory and related topics. The conference is organized by ICMS Sofia, IMSA Miami and supported by Simons foundation. For the Programme and further information please visit: https://icms.bg/workshop-recent-developments-in-modern-hodge-theory/ On December 10th and 11th the workshop sessions will be held in Room 256 (Conference Room of IMI - BAS).
The next meeting of the Algebra and Logic Seminar will take place in hybrid form on December 5, 2025 (Friday) at 1:00 pm (UTC+3) in Room 578 of IMI-BAS and online via Zoom. A talk on: Classical Results in ITL with the Neighbourhood Modalities and Their Short Proofs Using Separation will be delivered by Dimitar Guelev (IMI-BAS). Link to the zoom meeting: Https://us02web.zoom.us/j/85137375021?pwd=RE5QczdFTE1xL1R6MnI2b1lkcGczQT09 Everybody is invited. Algebra and Logic Department, IMI - BAS http://www.math.bas.bg/algebra/seminarAiL/ ============================== =====================
On December 09, 2025 (Tuesday) at 14:15 in room 503 of IMI-BAS and online via Zoom Dr. Sebastian Tapia Garcia, research unit Variational Analysis, Dynamics and Operations Research, Vienna University of Technology will give a talk at the Operations Research, Probability and Statistics Seminar on: Differentiable functions with surjective generalized Jacobians. Abstract: In this talk we start with a brief discussion about the possible values that the limiting and Clarke Jacobians can take in the class of differentiable locally Lipschitz functions (defined on finite dimensional spaces). Then, we construct a differentiable locally Lipschitz function f:R^n\to R^m such that, for any nonempty compact connected C \subset R^{n х m}, we can find a point x in R^n such that C coincides with the limiting Jacobian of […]
The annual scientific session of the Department of Mathematical Linguistics will be held on December 10, 2025, at 2:30 pm in Room 278. PROGRAMME
The next meeting of the Applied Mathematics Seminar will be held on December 10 (Wednesday) at 3:00 PM in room 503 of IMI-BAS. Lecturer: Giuseppe D'Onofrio (Politecnico di Torino, Италия) Title: ADDITIVE SUBORDINATION OF MULTIPARAMETER MARKOV PROCESSES Abstract: In this talk, we consider multiparameter multidimensional Markov processes that are time-changed by an independent additive subordinator, obtained from a Lévy process by relaxing the condition of stationary increments. By extending Phillips theorem, we show that the resulting process is a Feller evolution and we characterize its generator. We further derive its pseudo-differential representation and show that its symbol admits a Lévy-Khintchine representation. As an application, we consider a factor-based specification for the Ornstein-Uhlenbeck process subordinated by a Sato process. The constructive nature of this process […]
International Conference “Early Career Mathematicians in the Balkans” December 12 - 13, 2025, Sofia The conference is hosted by the International Center for Mathematical Science at IMI-BAS, Sofia, as a forum for early carrier researchers working across the Balkan region. The aim is to provide an opportunity for outstanding young researchers to share knowledge on modern mathematics, with the hope of fostering the creation of lasting research networks in the region, and strengthening the relations between the academic communities. Supported by the Scientific Programme “Enhancing the Research Capacity in Mathematical Sciences (PIKOM)”, No. DO1-67/05.05.2022. PROGRAMME For further information: https://icms.bg/international-conference-early-career-mathematicians-in-the-balkans-2025/
The annual Scientific Session of the Department of Algebra and Logic will be held on December 12th (Friday) at 9:45 am in Room 578 of IMI - BAS. Programme 9:45 – 10:00 Opening 10:00 – 10:20 Vesselin Drensky: Dihedral invariants of the free associative algebra of rank two (joint results with Silvia Boumova and Şehmus Fındık). 10:20 – 10:50 Tatiana Gateva-Ivanova: Finite idempotent braided sets and their quadratic algebras 10:50 – 11:00 Break 11:00 – 11:20 Emil Kolev: Covering problems 11:20 – 11:40 Ivan Chipchakov: Application of primary tensor product decompositions to the normality question for locally finite-dimensional central division algebras 11:40 – 11:50 Break 11:50 – 12:10 Veselin Filev: Holographic flavour and neural networks 12:10 – 12:30 Elitza Hristova: Tensor products of Lie […]
The International Center for Mathematical Sciences – Sofia (ICMS-Sofia) hosts an international conference on Quantum Groups and Cluster Algebras between 15-19 December 2025 at the Institute of Mathematics and Informatics, Bulgarian Academy of Sciences. The aim of this conference is to bring together researchers to share recent advances, promote further developments in the theory of Quantum Groups and Cluster Algebras, and to investigate their interactions and applications across mathematics and physics. Quantum groups and cluster algebras both provide frameworks for encoding algebraic and geometric structures arising in representation theory, geometry, and mathematical physics. Quantum groups, as deformations of universal enveloping algebras, capture generalized symmetries with rich categorical and representation-theoretic properties. On the other hand, Cluster algebras, introduced by Fomin and Zelevinsky, appear as important […]
The annual scientific session of the Department of Mathematical Modeling and Numerical Analysis will be held on Monday, December 15, 2025, at 11:00 a.m. in room 503 of IMI-BAS. PROGRAMME
TheAnnual Scientific Session of the Department of Operation Research, Probability and Statistics will be held on December 16, 2025 (Tuesday) at 09:30 am in room 503 of IMI-BAS. PROGRAMME
The Annual Scientific Section of the Department of Analysis, Geometry and Topology will be held on December 16, 2025, at 2:00 pm in Room 478 of IMI - BAS. PROGRAMME
