The next session of the Geometry Seminar of ICMS will be held on Wednesday, November 15th, at 16:00, in room 403 and via Zoom: Topics in non-archimedean analytic geometry (I), by Jiachang Xu – International Center for Mathematical Sciences (ICMS – Sofia) Zoom link: https://us02web.zoom.us/j/83740034721?pwd=VnBtcVpGUktscHQ4a09jZkNZTURyZz09
Time: October 17, 2023, 2:00 pm Place: Room 403, IMI - BAS Speaker: Mikhail Shkolnikov, IMI-BAS Title: Tropical structures in sandpile model Abstract: The sandpile model is a cellular automaton that can be defined on any graph. Though it has appeared independently in a variety of contexts, it attracted tremendous attention from the wide scientific community when its instance on a large domain of the square lattice was put forward as the simplest rigorous example of self-organized criticality. Such phenomena, real-life examples of which are earthquakes, solar flares, or neuronal avalanches, could be vaguely described as being between order and chaos, demonstrating power laws without being finely tuned, and transcending the scale. Tropical geometry, on the other hand, is a field of pure mathematics [...]
The first meeting of the ICMS Seminar for 2023/2024 will be held on October 10, 2023, at 2:00 pm in Room 403 of IMI - BAS. A talk on: About a generalisation of Sylvester’s law of inertia will be delivered by Stéphanie Cupit-Foutou (Ruhr Universitat, Bohum). https://icms.bg/about-a-generalisation-of-sylvesters-law-of-inertia-talk-by-stephanie-cupit-foutou/ Abstract. Sylvester’s law of inertia can be formulated in terms of group actions when considering real linear groups acting on real quadratic forms by base change. After reviewing this celebrated result from this perspective, I will give a generalisation of it in the setting of so-called spherical varieties (a class of complex varieties including flag varieties, toric varieties, symmetric spaces, etc.). This is a joint work with D. Timashev
ICMS-Sofia and IMSA-Miami present Consortium Distinguished Lecture Series June 30, 2023, 15:30 (EEST, Sofia time), “Prof. Marin Drinov” Hall, Bulgarian Academy of Sciences 1, “15th November” Str., Sofia and via Zoom Michael R. Douglas, Harvard University, CMSA 3:30 pm (UTC+3) Lecture 1: Tameness and quantum field theory Abstract: I will discuss the notion of a space of quantum field theories, and explain various approaches to its definition and some of its expected properties. I will then cover joint work with Thomas Grimm and Lorenz Schlechter on tameness of quantum field theories. This is based on the mathematical concept of o-minimal structures, which has been very powerful for proving finiteness results. Given a QFT or a space of QFTs, we define a corresponding structure, and conjecture [...]
Dr. Dimitar Kodjabachev will deliver a short course of 4 lectures, organized by the Interntional Center of Mathematical Sciences, on Introduction to tensor triangular geometry The lectures will be held on June 20 (Tuesday), June 22 (Thursday), June 26 (Tuesday) and June 29 (Thursday) at 2:00 p.m. in Room 403 of IMI - BAS. Course description
International Workshop (Mini-Conference) Recent Developments in Stochastic Processes RDSP 2023 March 27 – 29, 2023 Sofia, Bulgaria organized by Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences (IMI-BAS) Faculty of Mathematics and Informatics, Sofia University “St. Kliment Ohridski” (FMI-SU) with the assistance of Bulgarian Statistical Society (BSS) The workshop will bring renowned specialists from different subfields of contemporary probability theory. Along with the invited lectures, anyone interested may apply for a contributed talk. Conference website: https://icms.bg/recent-developments-in-stochastic-processes/ For more information: firstname.lastname@example.org.
A joint seminar of the International Center for Mathematical Sciences and the Department of Mathematical Foundations of Informatics will be held on Tuesday, January 24, 2023, at 3:00 pm. Speaker: Maryam Bajalan Title: Linear and Cyclic Codes over Rings Abstract: The study of codes over the rings (ring-linear codes) attracted great interest after the work of Calderbank, Hammons, Kumar, Sloane, and Sole in the early 1990s. In this seminar, the basic theory of linear codes over finite commutative rings will be presented including the importance of codes over rings, various kinds of rings for ring-linear coding theory, the weight functions on finite rings, MacWilliams equivalence theorem and the connection between these codes and codes over fields via the Gray maps. Moreover, the cyclic codes over finite [...]
The Annual Scientific Session of the International Center of Mathematical Sciences (ICMS) will be held on December 12, 2022, at 2:00 pm in Room 403 of IMI - BAS. Program 14:00-14:20 Oleg Mushkarov, ICMS activities in 2022 14:20-14:40 Rodolfo Aguilar, The nilpotent quotients of quasi-Kähler manifolds with proper quasi-albanese map 14:40-15:00 Антони Рангачев, Fujita-type theorem for the local volume of a line bundle 15:00 -15:10 Break 15:10 -15:30 Andrei Bengus-Lasnier, Geometric and combinatorial interpretations for valuations 15:30 - 15:50 Marin Genov, On the Jacobian conjecture in characteristic 0 for certain polynomial maps of degree 2 and 3 15:50 - 16:00 Break 16:00 - 16:20 Sebastien Torres, Semiorthogonal decompositions on moduli spaces 16:20 - 16:40 Danila Cherkashin, On stability of the spanning trees enumerator 16:40 - 17:00 Dimitar Kodjabachev, Picard [...]
The initiative Women in Mathematics of South-Eastern Europe, aiming at promoting the role of female mathematicians, started in Dec 2020, when the inaugural conference took place. We intend to make these conferences annual.
Dr. Andrey Bengus-Lasnier will deliver a series of lectures organized by ICMS (about 8 lectures) on: Introduction to Resolution of Singularities The course topic is fundamental to algebraic geometry. The course is accessible to mathematics students with a background in commutative algebra. The first lecture is on November 22 at 1:30 p.m. in room 403 of IMI-BAN. Course annotation You can see the first two lectures of Dr. Bengus-Lasnier here: https://www.youtube.com/playlist?list=PLeJfYzSLUQsBkZ9st_ZJ8OjT4deTeysQB https://youtu.be/h6TnwOY_qEM