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Algebra and Logic Seminar

Institute of Mathematics and Informatics, BAS Akad.G.Bonchev St, bl. 8, 1113, Sofia

The next meeting of the Algebra and Logic Seminar will take place on April 24, 2026 (Friday) at 1:00 pm (UTC+3) in Room 578 and online via Zoom. A talk on: Sets preserved by a large subgroup of the special linear group will be delivered by Kaloyan Slavov (Medical University, Sofia). Abstract. The classical Kakeya problem in Euclidean space asks how “small” a set can be if it contains a unit line segment in every direction. More generally, packing sets contain all images of a given set under a collection of transformations. Finite field analogues offer a combinatorial and algebraic perspective and motivate our work. We study sets E in the affine plane over a finite field that are invariant under a large subgroup R [...]

Preliminary Defense of Ventsislav Polimenov, SofTIS Department

Institute of Mathematics and Informatics, BAS Akad.G.Bonchev St, bl. 8, 1113, Sofia

On April 24, 2026 (Friday), at 2:00 pm, in the Conference Room of IMI-BAS (Room 256) and via ZOOM, a preliminary defense will be held of the dissertation on Adaptive neural network for processing satellite data with different spatial and spectral characteristics by Ventsislav Polimenov, doctoral student at the Software Technologies and Information Systems section, with scientific supervisor Assoc. Prof. Krasimira Ivanova, for obtaining the educational and qualification degree Doctor of Philosophy in the higher education area 4. Natural Sciences, Mathematics and Informatics, professional field 4.6 Informatics and Computer Science. * The dissertation materials are available in the IMI library. * Zoom link: https://us02web.zoom.us/j/88606059983?pwd=rsE8lZaDFuRmGpaaIuUIPRErEV6dJM.1

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