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So far tbranzov has created 46 blog entries.
4 02, 2022

Windows and Geometric Invariant Theory

2022-02-04T13:05:05+02:00February 4th, 2022|Joint ICMS & IMSA Seminar|

The theory of windows was introduced relatively recently by both Halpern-Leistner and Ballard, Favero and Katzarkov, and is a great tool to study derived categories of algebraic varieties that appear as GIT constructions, as well as their behaviour at wall crossings as we vary the stability conditions.

2 02, 2022

Sampling with Minimal Energy: A talk in commemoration of Bl. Sendov’s 90th birth date.

2022-02-07T11:04:25+02:00February 2nd, 2022|Consortium Distinguished Lecture Series|

The International Center for Mathematical Sciences at the Institute of Mathematics and Informatics (ICMS–Sofia) will commemorate the 90th anniversary of the birth of Prof. Sendov with a special talk by Edward Saff from Vanderbilt University, USA - "Sampling with Minimal Energy: A talk in commemoration of Bl. Sendov's 90th birth date."

2 02, 2022

90th anniversary of the birth of Professor Blagovest Sendov

2022-02-09T16:47:38+02:00February 2nd, 2022|News|

February 8, 2022, marks the 90th anniversary of the birth of Blagovest Sendov. He passed away on January 19, 2020, shortly before reaching the age of 88. The Institute of Mathematics and Informatics and the ICMS will commemorate the 90th anniversary of the birth of Prof. Sendov with a talk by Edward Saff from Vanderbilt University, USA - "Sampling with Minimal Energy: A talk in commemoration of B. Sendov's 90th birth date."

11 01, 2022

Women in Mathematics in South-Eastern Europe 2021

2022-01-11T15:50:19+02:00January 11th, 2022|Conferences|

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. A special distinguished guest of the inaugural conference was prof. Mina Teicher from the Department of Mathematics and Gonda Brain Research Center, Bar-Ilan University, Israel, Director of Emmy Noether Institute for Mathematics. Information about the first conference is available at: https://icms.bg/women-in-math-2020/.

11 11, 2021

From Turaev to Rokhlin via VOA Characters and Curve Counting, by Sergey Gukov

2021-11-23T21:48:28+02:00November 11th, 2021|Consortium Distinguished Lecture Series|

These lectures will present a board survey of recent work on new q-series invariants of 3-manifolds labeled by Spin-C structures. While the original motivation for studying these invariants is rooted in topology, they exhibit a number of unexpected properties and connections to other areas of mathematics, e.g. turn out to be characters of logarithmic vertex algebras. The integer coefficients of these q-series invariants can be understood as the answer to a certain enumerative problem, and when q tends to special values these invariants relate to other invariants of 3-manifolds labeled by Spin and Spin-C structures.

8 11, 2021

Fulbright Executive Director Angela Rodel visited the ICMS-Sofia

2021-11-08T16:29:37+02:00November 8th, 2021|News|

On October 14, 2021, Ms. Angela Rodel, Executive Director of the Fulbright Bulgaria Program, and Ms. Maria Kostova, Program Officer, Bulgarian Grantees, visited the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences. They presented the work of the Bulgarian-American Fulbright Educational Exchange Commission and the opportunities it offers for scientists, researchers and PhD students. After the presentation, Ms. Rodel visited the International Center for Mathematical Sciences (ICMS), where she was hosted by the director of the Center - Prof. Oleg Mushkarov, and Prof. Lyudmil Katzarkov, scientific director of ICMS, who joined the event through zoom. Opportunities for cooperation and participation in Fulbright programs were discussed at the meeting.

3 11, 2021

Geometric Langlands, by Dennis Gaitsgory

2021-11-23T21:45:56+02:00November 3rd, 2021|Consortium Distinguished Lecture Series|

We will start these series by reviewing the general framework of geometric Langlands correspondence, and state the main conjectures in the de Rham and Betti settings. We will also recall V. Lafforgue's theorem about the spectral decomposition in the classical Langlands over function fields. We will then proceed to the formulation of "restricted" Langlands correspondence, which unifies the different contexts. We will state the restricted version of the geometric Langlands conjecture, and explain its relation with the classical Langlands conjecture via the operation of categorical trace.

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