Naredni sastanak Seminara biće održan u utorak, 6. juna 2023, u sali 301f Matematičkog instituta SANU sa početkom u 14.15.
Predavač: Prof. dr.sc. Neven Vrček, University of Zagreb, Faculty of Organization and Informatics, Croatia
Naslov predavanja: SMART FRAMEWORKS FOR SMART INDUSTRY - SWARM AS A RESEARCH PLATFORM
Apstrakt: Rapid technological development and convergence of technologies brought up a concept of smartness as a paradigm for modern society. We are talking about smart products, smart buildings, smart cities, smart ecosystems, etc. In order to fulfill expectations these concepts must be researched from many perspectives which overarch disciplines and reduce friction for widespread adoption of smart paradigm. Besides the obvious technological domain, we have to include legal aspects, user behavior, business models, etc. One approach to research these heterogeneous, and yet convergent domains, is to set up frameworks which can be used in various contexts and analyze them from different perspectives. This presentation introduces the SWARM of drones as a platform used to analyze various aspects that can adapt to the different domain requirements, most often within a smart urban environment. The platform developed within a project UNMANNED AERIAL VEHICLE CONTROL AND SURVEILLANCE FRAMEWORK is a testbed for the use and control of SWARM of drones. The platform combines technology-related research activities such as artificial intelligence for SWARM control, RF signal propagation and location determination within various use cases such as smart logistics, pollution identification, air quality monitoring etc. All these are accompanied with research about possible business models, legal requirements, privacy assessment, risk analysis and cost benefit analysis. The platform has interoperable modules that can be easily changed and adapted to various use cases. Our experience shows that such frameworks can gather scientists from various disciplines and bring up innovative solutions which have scientific and applied value.
Napomene: Napomena: Registraciona forma za učešće na Seminaru je dostupna na linku:
https://miteam.mi.sanu.ac.rs/call/wnz6oyxsQsy29LfJA/MjQ__eH607WeAL9X7IFtUI98xdQQgVkp ljiEKPPfXr
Ukoliko želite samo da pratite predavanje bez mogućnosti aktivnog učešća, prenos je dostupan na linku:
https://miteam.mi.sanu.ac.rs/asset/YoqHWKALRkRTbK9So
detaljnije
Međunarodna konferencija iz bioinformatike, Belgrade Bioinformatics Conference - BELBI2023, biće održana u periodu 19-23. juna 2023. uz podršku više naučnoistraživačkih organizacija iz Beograda i programa COST (European Cooperation in Science and Technology).
Za četvrtu po redu međunarodnu konferenciju iz bioinformatike otvorene su prijave za registraciju od 13. maja 2023. godine.
Više informacija o konferenciji može se naći na strani https://belbi.bg.ac.rs/
Rok za prijavu apstrakata je produžen do 2. juna 2023.
detaljnije
Naredni sastanak Seminara biće održan u petak, 9. juna 2023, u sali 301f Matmatičkog instituta SANU sa početkom u 14.15.
Predavač: Aleksandra Marinković, Matematički fakultet, Univerzitet u Beogradu
Naslov predavanja: SYMPLECTIC CIRCLE ACTIONS ON MANIFOLDS WITH A CONTACT TYPE BOUNDAR
Apstrakt: In this talk we consider circle actions on symplectic manifolds that have a (convex) contact type boundary. The most natural examples from classical mechanics are cotangent bundles with their natural actions induced by an action on the base manifold. We show that many of the key ideas of Morse-Bott theory, used for closed symplectic manifolds, could also be applied in the boundary case. However, in contrast to the closed symplectic case, we show that any symplectic circle action on a symplectic manifold with a contact type boundary is always Hamiltonian. We further show several results about the topology of these symplectic manifolds. In particular, we show that the contact type boundary is connected if the dimension of the symplectic manifold is 4.
This talk is based on a joint work with Klaus Niederküger.
Napomena: Predavanja se mogu pratiti na daljinu preko linka:
https://miteam.mi.sanu.ac.rs/call/T9XDGChhq8aDcNqmz/qw7wIwci2jv2rdg9I9CrXkm7OJhF_LB8DfjXZp4jTFV
Registraciona forma je dostupna na:
https://miteam.mi.sanu.ac.rs/asset/tz97w4Hu4c3unsJ7N
detaljnije
Naredni sastanak Seminara biće održan u sredu, 7. juna 2023, u sali 301f Matmatičkog instituta SANU sa početkom u 13 časova. U pitanju je zajednički sastanak sa Odeljenjem za matematiku.
Predavač: Alexey Semenov,
Head of the Department of Mathematical Logic and Theory of Algorithms of Lomonosov Moscow State University; Director of Axel Berg Institute of Cybernetics and Educational Computing of Russian Academy of Sciences; Academician of Russian Academy of Sciences and Russian Academy of Education
Naslov predavanja: THE THEORY OF DEFINABILITY
Apstrakt: Definability theory can be considered as an important part of all mathematics along with proof theory, model theory, and computation theory. This was constantly emphasized by Alfred Tarski, who owns remarkable results in this theory, the main question of which is: is it possible to define some concept or relation, through other concepts, relations.
The report will give a general overview of the results in definability theory since the XIX century, including the Svenonius Theorem (completeness theorem for definability), the latest results of the author, his students and colleagues are presented, and a wide spectrum of open problems and possible solutions are proposed. The presence of this spectrum is a characteristic feature of the current state of definability theory.
The report can also provide a general overview of the research on mathematical logic, theory of algorithms and Computer Science going on at Moscow University, Moscow, and Russia.
Napomena: Predavanja se mogu pratiti na daljinu preko linka: https://miteam.mi.sanu.ac.rs/asset/iYxPidYtFqBC9sT7a
Registraciona forma je dostupna na:
https://miteam.mi.sanu.ac.rs/asset/oaqCm4EyPhHR6kM6N
detaljnije
Naredni sastanak Seminara biće održan onlajn u sredu, 7. juna 2023, sa početkom u 19 časova.
Predavač: Andrii Shalaginov, Associate Professor, Department of Technology, Kristiania University, College, Oslo, Norway
Naslov predavanja: ARTIFICIAL INTELLIGENCE FOR CYBERSECURITY IN RESOURCE-CONSTRAINED SMART INFRASTRUCTURES: APPLICABILITY, OPPORTUNITIES AND ENERGY MODELLING
Apstrakt: Rapid boosted digitalization through the last decade in addition to a worldwide orientation towards smarter and greener environments has resulted in many cities becoming more intelligent when it comes to automation and natural resources utilization. This includes faster development of 5G networks, Wi-Fi 6, blockchain and versatile application of AI. Smart Environment is a technology-enabled phenomenon that offers better, user-friendly and more efficient IoT-based environments with a specific focus on greener and more sustainable future both in rural and city-wise contexts. However, wide range of IoT-enabled devices often lack the means for implementing necessary cybersecurity measures capable of handling adversarial actions both due to limited standardization and weak computation capabilities. Furthermore, following the EU strategy towards energy consumption optimization, it is important to focus on modelling energy-aware Incident Response and Business Continuity from the technological perspective. Tangible cost in watts of cyber-physical threats and controls to prevent these threats need to assessed using intelligent AI-based human-understandable mechanisms. Not only will this help reduce the overall cost based on the performance per watt measure, but it will also give a better understanding of the energy consumption landscape for policymakers and IT governance managers.
Napomena: Registraciona forma za učešće na Seminaru je dostupna na linku:
https://miteam.mi.sanu.ac.rs/asset/CW5nJWDSEZDj7p32p
Ukoliko želite samo da pratite predavanje bez mogućnosti aktivnog učešća, prenos je dostupan na linku:
https://miteam.mi.sanu.ac.rs/asset/4LNW8WtML7rLKojoz
detaljnije
U petak, 2. juna 2023, biće održano specijalno izdanje seminara Odeljenja za matematiku. Predavanja će održati četvoro gostiju sa instituta sa Univerziteta Primorske u Kopru, Slovenija. Predavanja biti održana u zgradi SANU, Kneza Mihaila 35, sala 2 na 1. spratu, sa sledećim programom:
11:00-11:45 Tomaž Pisanski, Univerza na Primorskem, Slovenija
FROM THE HISTORY OF THE JOURNAL ARS MATHEMATICA CONTEMPORANEA
Fifteen years ago, in 2008, the first issue of mathematical research journal Ars Mathematica Contemporanea was published. A brief history of the first Slovenian mathematical journal, as well as the strategy that was used for its launching and later development, will be presented.
11:45-12:30 Dragan Marušič, Univerza na Primorskem, Slovenija
ON HAMILTONICITY OF VERTEX TRANSITIVE GRAPHS
The following question asked by Lovász in 1970 tying together traversability and symmetry, two seemingly unrelated graph-theoretic concepts, remains unresolved after all these years: Does every finite connected vertex-transitive graph have a Hamilton path?In my talk I will discuss certain partial results obtained thus far together with a connection to another long standing problem regarding vertex-transitive graphs, the so called "polycirculant conjecture": is it true that every vertex-transitive graph admit a nontrivial automorphism with all orbits of the same size?
13:00-13:45 Klavdija Kutnar, Univerza na Primorskem, Slovenija
ON INTERSECTION DENSITIES OF TRANSITIVE GROUPS AND VERTEX-TRANSITIVE GRAPHS
The Erdös-Ko-Rado theorem, one of the central results in extremal combinatorics, which gives a bound on the size of a family of intersecting k-subsets of a set and classifies the families satisfying the bound, has been extended in various ways. In this talk I will discuss an extension of this theorem to the ambient of transitive permutation groups and vertex-transitive graphs.
Let V be a finite set and G a group acting on V. Two elements g,h ∈ G are said to be intersecting if g(v) = h(v) for some v ∈ V. More generally, a subset F of G is an intersecting set provided every pair of elements of F is intersecting. The intersection density ρ(G) of a transitive permutation group G is the maximum value of the quotient |F|/|G_v|, where F runs over all intersecting sets in G and G_v is a stabilizer of v ∈ V.
The intersection density array [ρ_0,ρ_1, ...,ρ_(k-1)] of a vertex-transitive graph X is defined as a "collection" of increasing intersection densities of transitive subgroups of Aut(X), that is, for any transitive subgroup G of Aut(X), we have ρ(G) = ρ_i for some i ∈ Z_k, with ρ_i<ρ_(i+1).
In this talk I will present some recent results about intersection densities of certain transitive permutation groups and vertex-transitive graphs of small valencies. This is a joint work with Ademir Hujdurović, Ištván Kovác, Bojan Kuzma, Dragan Marušić, Štefko Miklavič, Marko Orel and Cyril Pujol.
13:45-14:30 Aleksander Malnič, Univerza v Ljubljani i Univerza na Primorskem, Slovenija
ON REFLEXIBLE POLYNOMIALS
Let p be an odd prime. A polynomial f(x) = a_0 + a_1 x + ... + a_n x^n over the field Z_p is reflexible if there exists λ ∈ Z^*_p such that either λ a_(n-i) = a_i (for all i = 0, 1, ..., n) or else λ a_(n-i) = (-1)^i a_i (for all i = 0, 1, ..., n).
Such polynomials were instrumental in the classification of 4-valent arc-transitive graphs arising as minimal elementary abelian covers of doubled cycles [JCTB 131 (2018), 109–137, joint work with Boštjan Kuzman and Primož Potočnik]. In the talk I will present some properties of reflexible polynomials.
Napomene:
Predavanja se mogu pratiti na daljinu preko linka:
https://miteam.mi.sanu.ac.rs/call/T9XDGChhq8aDcNqmz/qw7wIwci2jv2rdg9I9CrXkm7OJhF_LB8DfjXZp4jTFV
Registraciona forma je dostupna na:
https://miteam.mi.sanu.ac.rs/asset/tz97w4Hu4c3unsJ7N
detaljnije
Naredni sastanak Seminara biće održan u petak, 2. juna 2023, u sali 301f Matematičkog instituta SANU sa početkom u 12 časova.
Predavač: Momčilo Mrkaić, Gradski univerzitet u Hong Kongu
Naslov predavanja: DIZAJN MEHANIZAMA SA I BEZ NOVCA
Apstrakt: Dizajn mehanizama je grana ekonomije koja je posebna po tome što poseduje i perspektivu računarskih nauka. Kako je uticaj Interneta rastao, nastalo je novo polje nazvano algoritamski dizajn mehanizama. Bavi se optimizacionim problemima u postavci teorije igara, kao što su alociranje memorije i usmeravanje poruka. Mehanizam treba da radi sa pretpostavkom da svaki učesnik ima svoje sebične ciljeve. Učesnici mogu i da strateški lažu, pri čemu bi cilj mehanizma bio da nemaju razloga za tim. Da bi se poravnali ciljevi individua i celokupnog društva često se koristi novac, ali je moguće dizajnirati mehanizme bez novca koji će osigurati iskrenost učesnika.
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
detaljnije
I ovog leta Matematički institut SANU organizuje istraživačke prakse za studente osnovnih, master i doktorskih studija. Osnovni cilj istraživačke prakse je uvođenje mladih u načni rad i mentorski rad naših saradnika sa njima, a mentori su i ovoga puta osmislili zanimljive teme iz oblasti matematike, mehanike i računarskih nauka. Jasno je da su za ovaj vid rada potrebni izvesni preduslovi (dovoljan nivo predznanja iz odgovarajuće oblasti, motivisanost i tehničke sposobnosti studenata), pa će MI SANU izvršiti selekciju kandidata na osnovu:
1. prijave, uspeha u dosadašnjem školovanju, biografije i motivacionog pisma studenata koji se prijavljuju za jedan ili više ponuđenih programa,
2. intervjua i mišljenja mentora koji će voditi ponuđeni program koji je student odabrao.
Dodatno, ove godine će Matematički fakultet Univerziteta u Beogradu svojim studentima koji uspešno završe praksu priznati i kurs pod nazivom Stručna praksa.
Prijava se vrši elektronskim putem, popunjavanjem prijavnog formulara:
https://forms.gle/hw9dEGpw1nG19uwY7
Opisi tema se mogu naći OVDE. Student se može prijaviti na najviše dve teme, a na praksi može učestovati samo na jednoj.
Rok za prijavu je 20. jun 2023.
detaljnije
Naredni sastanak Seminara biće održan u sredu, 31. maja 2023. u sali N153 Matematičkog fakulteta (ulica Svetog Nikole br 39) sa početkom u 18 časova.
Predavač: Milena Šošić
Naslov predavanja: MODELOVANjE MORALNIH I EMOCIONALNIH KOMPONENTI JEZIKA U KLASIFIKACIJI KONVERZACIONIH TEKSTOVA (predstavljanje teme doktorske disertacije)
Apstrakt je dostupan na adresi:
http://computing.math.rs/files/2023-05-29-milena-sosic.pdf
detaljnije
