The Faculty Deanʼs Board has made a decision, based on the announcement of the Extended Rectorʼs Board of the University of Belgrade dated January 24, 2025, the recommendation of the Student Parliament, but also for the safety of all our students and employees, to suspend classes and examination activities until February 14, 2025. Classes and examination activities will be temporarily suspended at all locations where they are normally held (Studentski trg 16, Sveti Nikole 39 and Vatroslava Jagića 5).
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The Faculty Deanʼs Board has made a decision, based on the announcement of the Extended Rectorʼs Board of the University of Belgrade dated January 24, 2025, the recommendation of the Student Parliament, but also for the safety of all our students and employees, to suspend classes and examination activities until February 7, 2025. Classes and examination activities will be temporarily suspended at all locations where they are normally held (Studentski trg 16, Sveti Nikole 39 and Vatroslava Jagića 5).
Our "Novi Sad residents":
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Lecturer: Filip Živanović, Simons Center for Geometry and Physics, Stony Brook
Title: Equivariant Floer theory and filtrations on quantum cohomology
Abstract: In this talk I will review previous joint works with Alexander Ritter in which we obtain filtrations on quantum cohomology via Floer theory, and our more recent work in which we do the S^1- equivariant version of this.
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Naredni sastanak Seminara biće održanu petak, 15. marta 2024. godine sa početkom u sali 301f Matematičkog instituta SANU sa početkom u 12 časova.
Predavači: Veljko Radić, Matematički fakultet Univerziteta u Beogradu
Naslov predavanja: JEDNA NEJEDNAKOST IZMEĐU INVARIJANTI ČVOROVA
Apstrakt:
Jedan od osnovnih problema teorije čvorova je detekcija različitih čvorova. Iako generalni odgovor na to pitanje trenutno ne postoji, do delimičnih odgovora se može doći posmatranjem različitih invarijanti čvorova. U ovom predavanju ćemo uvesti tri invarijante - minimalni broj presecanja (crossing number), štapovski broj (stick number) i lučni indeks (arc index). Zatim ćemo dokazati jednu nejednakost između njih koju su korejski matematičari Youngsik Huh i Seungsang Oh dokazali 2011. godine. Zanimljivo je da ta nejednakost vodi poreklo iz takozvane Remzijeve teorije čvorove koja predstavlja spoj klasične kombinatorne Remzijeve teorije sa teorijom čvorova.
U samom početku predavanja ćemo uvesti osnovne pojmove iz teorije čvorova i kratko spomenuti njenu istoriju. Navešćemo i neke od otvorenih problema u oblasti. Poput teorije brojeva, mnogi od njih imaju prilično jednostavnu formulaciju. Međutim, za rešavanje mnogih od njih moguće je da nije neophodno veliko teorijsko znanje, kao što američki matematičar Kolin Adams tvrdi u svojoj knjizi The Knot Book: The Elementary Introduction to The Mathematical Theory of Knots. Usled toga, on smatra da je ova oblast prilično pogodna za istraživački rad mlađih studenata i samu knjigu je napisao kao pomoć pri mentorstvu takvog rada.
Napomena: Predavanja se mogu pratiti na daljinu preko linka:
https://miteam.mi.sanu.ac.rs/call/CihYM6Nratzix7c8G/uJmcdEJs4INWQ8MEoLVzHRGxbfbBEWSBMwXBYcymVoj
Registraciona forma je dostupna na:
https://miteam.mi.sanu.ac.rs/asset/M4zcEwxkzy5PqNS73
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The meeting of the Seminar on Symplectic Topology will be held on Thursday, January 12, 2024, in room 844 of the Faculty of Mathematics, starting at 5 p.m.
Lecturer: Vukašin Stojisavljević, Université de Montréal
Lecture title: ON CERTAIN C0-ASPECTS OF CONTACTOMORPHISM GROUPS
Abstract: We will show how the famous dichotomy between contact squeezing and (non-)squeezing is reflected in certain C0-properties of contactomorphisms. We will also define new metrics on contactomorphisms and, more generally, contact homeomorphisms and discuss their relation to previously explored notions. The main technical ingredient is a result about C0-continuity of actions of translated points of contacto- morphisms. The talk is based on a joint work in progress with Baptiste Serraille.
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The meeting of the Seminar on Symplectic Topology will be held on Thursday, December 28, 2023, in room 840 of the Faculty of Mathematics, starting at 2 p.m.
Lecturer: Filip Živanović, Simons Center for Geometry and Physics, Stony Brook
Lecture title: FILTRATIONS ON COHOMOLOGY INDUCED BY FLOER THEORY
Abstract: In this talk, I will talk about symplectic manifolds that admit pseudo-holomorphic C*-actions, and that are proper above a convex base. Examples of these spaces include symplectic quotients of R^2n, such as toric manifolds, and many resolutions of singularities. I will explain how Floer theory with data obtained from these C*-actions induces filtration on (quantum) cohomology of these manifolds, given as a type of spectral invariant. The fact that they come from C*-action makes them somewhat computable in practice, which I will show through the examples. Time permitting, we will compare this filtration with other known filtrations on the cohomologies of these spaces. This talk is based on joint work with Alexander Ritter.
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The Workshop on Symplectic Topology will be held at the Faculty of Mathematics in Belgrade from August 22nd to 24th, 2022.
Additional information can be found at https://symplectic.matf.bg.ac.rs/
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Faculty of Mathematics - University of Belgrade and Mathematical Institute of the Serbian Academy of Sciences and Arts, traditionally, in cooperation with other higher education and research institutions, as well as scientific societies, organize XLVIII Symposium on Operational Research - SYM-OP-IS 2021.
This year, the XLVIII SYM-OP-IS takes place in Banja Koviljača from 20 to 23 September 2021.
On behalf of the Programme and Organizing Committee of SYM-OP-IS 2021, it is our pleasure to invite you to participate in this year`s Symposium on Operational Research. We hope that your contribution will help to continue the tradition and quality of the Conference.
We encourage all contributions within and beyond the scope of specific scientific disciplines and countries, with the aim of furthering international cooperation. In addition, we warmly invite collaborators and students of Prof. Mladenović to contribute to a Special section on VNS method and applications, dedicated to Prof. Nenad Mladenović celebrating his 70th birthday and 45 years of research work.
The deadline for paper or abstract submission is May 31, 2021. Information on paper or abstract acceptance is June 15, 2021.
Information about the Symposium is available at the website
http://symopis2021.matf.bg.ac.rs.
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Homotopy Type Theory is an emerging field of mathematics that studies a fruitful relationship between homotopy theory and (dependent) type theory. This relation plays a crucial role in Voevodsky`s program of Univalent Foundations, a new approach to foundations of mathematics based on ideas from homotopy theory, such as the Univalence Principle. The UniMath library is a large repository of computer-checked mathematics, developed from the univalent viewpoint. It is based on the computer proof assistant Coq.
In this school and workshop, we aim to introduce newcomers to the ideas of Univalent Foundations and mathematics therein, and to formalizing mathematics in a computer proof assistant based on Univalent Foundations.
We will have two tracks:
- Beginners track
- Advanced track: suitable for participants with some experience in Univalent Foundations and the proof assistant Coq.
For information on how to participate, please visit:
https://unimath.github.io/bham2019.
Funding will be given out on a `first come first served` basis.
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The international conference "Morse theory and its applications" is dedicated to the memory and 70th anniversary of Volodymyr Sharko (25.09.1949-07.10.2014), the outstanding topologist and Corresponding Member of National Academy of Sciences, to commemorate his contributions to Morse theory, K-theory, L2-theory, homological algebra, low-dimensional topology and dynamical systems.
The conference will be held in Kyiv, Ukraine, at the Institute of Mathematics of National Academy of Sciences of Ukraine, 25-28 September 2019.
Participants are invited to present their current research and outline future directions in the theory and frontier applications. We invite colleagues working in this cross-disciplinary field to participate in the Conference and to make it a long-lasting memory event.
The official site of the conference
The Conference language is English. Plenary (40 minutes) and section (20 minutes) presentations as well as a poster session are planned.
To participate, please fill the registration form
Deadline for the registration to the conference is August 1, 2019.
Deadline for abstract submission: August, 15, 2019.
We are looking forward to welcome you in Kyiv!
Sergiy Maksymenko
Chair of the Organizing Committee
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