МЦМН – Institute of Mathematics and Informatics

Atom Theory Research Group Seminar

Seminar Details Speaker: Ludmil Katzarkov (ICMS, IMI-BAS, University of Miami) Title: Recent Advancements in the Theory of Atoms Date & Time: Tuesday, November 4, 2025, at 3:00 PM Place (In-Person): Room 403, IMI-BAS Online Attendance (Zoom) Zoom Link: https://us02web.zoom.us/j/86497450517?pwd=39OtfySJ4SbhKihr1IpaIz32dD7iBp.1 Meeting ID: 864 9745 0517 Passcode: 181023 For further information, always keep track of our website: https://icms.bg/research-groups/theory-of-atoms/

Albena Vassileva2025-10-31T15:19:55+02:00Friday, 31 October 2025|Categories: Regular Seminar|Tags: Atom Theory, МЦМН|

Joint Seminar of the AGT Department and ICMS

Joint Seminar of Analysis, Geometry and Topology Department and International Center for Mathematical Sciences – Sofia (ICMS-Sofia) Concircularly Semi-Symmetric Metric Connection Miroslav Maksimović University of Priština in Kosovska Mitrovica, Kosovska Mitrovica, Serbia, and Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, Bulgaria September 30, 2025, 11:00 h – room 403 Abstract. A concircularly semi-symmetric metric connection is a special class of semi-symmetric metric connection when its generator is a concircular vector. In this talk, we will present results on this connection on pseudo-Riemannian manifolds, and in particular, we will observe the application to Lorentzian manifolds and the theory of relativity. We demonstrate that a Lorentzian manifold reduces to a GRW space-time when the generator of the observed connection is a unit timelike vector. [...]

Albena Vassileva2025-09-24T16:12:41+03:00Wednesday, 24 September 2025|Categories: Regular Seminar|Tags: AGT, МЦМН|

ICMS Workshop: Recent Developments on Tropical Sandpiles and Related Subjects

The International Center for Mathematical Sciences – Sofia (ICMS-Sofia) presents Recent Developments on Tropical Sandpiles and Related Subjects Tuesday, 23 September and Thursday, 25 September 2025 ICMS-Sofia, Room 403 and via Zoom You may find the details here: https://icms.bg/recent-developments-on-tropical-sandpiles-and-related-subjects/ In addition, we plan to have a “round table” meeting at room 378 on Wednesday, September 24, at 14:00, to openly exchange ideas while enjoying drinks and snacks.

Albena Vassileva2025-09-20T19:25:26+03:00Saturday, 20 September 2025|Categories: Regular Seminar|Tags: МЦМН|

ICMS Workshop: Recent Developments on Tropical Sandpiles and Related Subjects

The International Center for Mathematical Sciences – Sofia (ICMS-Sofia) presents Recent Developments on Tropical Sandpiles and Related Subjects Tuesday, 23 September and Thursday, 25 September 2025 ICMS-Sofia, Room 403 and via Zoom You may find the details here: https://icms.bg/recent-developments-on-tropical-sandpiles-and-related-subjects/ In addition, we plan to have a “round table” meeting at room 378 on Wednesday, September 24, at 14:00, to openly exchange ideas while enjoying drinks and snacks.

Albena Vassileva2025-09-20T19:21:24+03:00Saturday, 20 September 2025|Categories: Regular Seminar|Tags: МЦМН|

The International Conference Celebrating the Consortium IMSAC brings together mathematicians from four continents

The International Conference Celebrating the Consortium IMSAC brings together mathematicians from four continents

This international meeting is a testament to the strength of global academic partnerships and the growing role of ICMS-Sofia as a center for high-level mathematical research. The event reaffirms ICMS-Sofia’s mission to foster scientific excellence and international collaboration within the framework of IMSAC.

Anna Branzova2025-08-06T12:38:29+03:00Wednesday, 6 August 2025|Categories: News|Tags: ICMS-Sofia, МЦМН|

ICMS – Geometry at Large International Conference

The International Center for Mathematical Sciences (ICMS-Sofia) at the Institute of Mathematics and Informatics of the Bulgarian Academy of Sciences and the Institute for Mathematical Sciences of the Americas (IMSA) at the University of Miami are organizing the international conference Geometry at Large, which will be held in Burgas from August 11 to 14, 2025. Conference Programme

Anna Branzova2025-08-05T17:29:26+03:00Tuesday, 5 August 2025|Categories: Conference|Tags: МЦМН|

Joint Seminar of the Analysis, Geometry and Topology Department

A joint meeting of the ICMS Seminar and the seminar "Analysis, geometry and topology" at IMI-BAS will be held next Tuesday, with a talk by Elia Fusi. The details are as follows. Tuesday, July 22-nd, 1:00 pm, room 403 of IMI-BAS. Elia Fusi, University of Torino. Special metrics in hypercomplex geometry Abstract:The existence of special hyperHermitian metrics plays an important role in the study of hypercomplex manifolds. In this talk, after a brief overview of the basic definitions in hypercomplex Geometry, we will discuss two of the main types of special metrics in the hypercomplex setting: quaternionic Gauduchon and strong HKT metrics. First of all, we will discuss sufficient and equivalent conditions for a quaternionic Gauduchon metric to exist. Afterwards, we will show that strong [...]

Albena Vassileva2025-07-17T11:28:54+03:00Thursday, 17 July 2025|Categories: Regular Seminar|Tags: AGT seminar, ICMS, МЦМН|

International Conference “Singularities in Plovdiv”

Singularities in Plovdiv International Conference Start date: 08.06.2025 End date: 13.06.2025 Event location: DoubleTree by Hilton Plovdiv Center Hotel, in Plovdiv, Bulgaria The conference is organized by the International Centre for Mathematical Sciences (ICMS–Sofia) at the Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, with the financial support of the Simons Foundation, The Ministry of Education of Science, The Swiss National Science Foundation and Institut de Mathématiques de Jussieu-Paris Rive Gauche. For more information please visit the conference website: https://icms.bg/singularities-in-plovdiv-2025/

Albena Vassileva2025-05-19T09:28:45+03:00Monday, 19 May 2025|Categories: Conference|Tags: conference, Singularities in Plovdiv, МЦМН|

ICMS Seminar

A meeting of the ICMS seminar will be held on May 13, 2205, at 2:00 pm, in Room 403 of IMI - BAS. Speaker: Milan Zlatanovic (University of Niš) Title: Non-symmetric gravitational theorys Abstract: We will consider a connection with totally skew-symmetric torsion on non-symmetric (semi-) Riemann manifolds that satisfy Einstein’s metric condition (EMC). We proved that an almost Hermitian manifold is a non-symmetric Riemann manifold that satisfies EMC if and only if it is a Nearly Kahler manifold. We will also show what happens in the case of para Hermitian manifold, contact, and para-contact manifolds that satisfy EMC. We show that a connection with skew symmetric torsion satisfying EMC exists on an almost contact metric manifolds when it is D-homothetic to a cosymplectic manifold. [...]

Albena Vassileva2025-05-12T14:50:03+03:00Monday, 12 May 2025|Categories: Regular Seminar|Tags: МЦМН|

Geometry Seminar of ICMS

The next session of the Geometry Seminar of ICMS will be held on Wednesday, May 7, 2025, at 4:00 pm, in room 403 and via Zoom. A talk on: Binary Quadratic Forms and Conway’s Topographs (Lecture 2 of 3) will be delivered by Nikita Kalinin, Guangdong Technion Israel Institute of Technology. The next lecture will be held on 14.05.2025 at 4:00 pm. Abstract: Binary quadratic forms are as elementary as they are mysterious—much like prime numbers. In 1997, John Conway introduced topographs, a powerful geometric tool that provides a geometric visualization of binary quadratic forms and their values. These lectures will explore how topographs, combined with telescoping summation techniques, yield elegant formulas — some with intuitive geometric interpretations. For instance, consider the following result: [...]

Albena Vassileva2025-05-05T20:01:08+03:00Monday, 5 May 2025|Categories: Regular Seminar|Tags: geometry seminar, ICMS, МЦМН|