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Defense of the PhD thesis of Miroslav Dimitrov

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

The Institute of Mathematics and Informatics of BAS and the Scientific Board for the awarding of PhD degree hereby announce that on February 17, 2023, at 1:00 p.m., an open meeting of the Scientific Board will be held at IMI - BAS for the defense of the doctoral dissertation on: Designing Boolean Functions and Digital Sequences for Cryptology and Communications of Miroslav Marinov Dimitrov Higher Education Field 4. Science, Mathematics and Informatics, Professional field 4.6. Informatics and Computer Science, PhD program “Informatics” Research Advisor: Prof. Tsonka Baicheva, D.Sc. Chairman of the Scientific Board: Prof. Ivan Landzhev, D.Sc. Members of the Scientific Board: Prof. Nikolay Yankov, D.Sc. Prof. Tsonka Baicheva, D.Sc. Prof. Maya Stoyanova, PhD Assoc. Prof. Zlatko Varbanov, PhD The documents related to the [...]

Algebra and Logic Seminar

Zoom

The next meeting of the Algebra and Logic Seminar will be held on February 17, 2023 (Friday) online in Zoom. A talk on: Invariant theory for reductive subgroups of reductive groups will be delivered by Valdemar Tsanov (IMI-BAS). Abstract.Let H ⸦ G be an embedding of connected complex reductive linear algebraic groups. A classical question with several important interpretations is: which irreducible G-modules contain nonzero H-invariant vectors? An approach based on the Geometric Invariant Theory of Hilbert-Mumford was developed in works of Heckman, Berenstein-Sjamaar, Belkale-Kumar and Ressayre, culminating in a description of the generalized Littlewood-Richadson cone - the convex hull of set of the highest weights of the G-modules containing H-invariants. The discrepancy between the convex hull and the actual set of weights presents [...]

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