Naredni sastanak Seminara biće održan u četvrtak, 20 juna 2019. u sali 840 Matematičkog fakulteta sa početkom u 12 časova.
Predavač: Ilja Gogić, Department of Mathematics, Faculty of Science, University of Zagreb
Naslov predavanja: LOCAL MULTIPLIERS AND ELEMENTARY OPERATORS OF C*-ALGEBRAS
Međunarodna konferencija "On the Trail of Women in Mathematics", posvećena Sofiji Kovalevskoj (Sofia Kowalewska, 1850 – 1891), biće održana od 31. avgusta do 2. septembra u Krakovu, Poljska.
Detaljnije informacije o konferenciji su dostupne na sajtu http://skwm.ptkwm.org.pl/
Rok za dostavljanje apstrakata je 15. jul 2019.
Ova konferencija neposredno prethodi Kongresu kojim se obeležava 100 godina od osnivanja Društva matematičara Poljske (A Jubilee Congress of Polish Mathematicians in the 100th Anniversary of the Polish Mathematical Society). Kongres će biti održan od 3. do 7. septembra 2019. takođe u Krakovu. Više informacija o Kongresu je dostupno na sajtu https://100latptm.matinf.uj.edu.pl/en/
Naredni sastanak Seminara biće održan u petak, 21. juna 2019. u sali 301f Matematičkog instituta SANU sa početkom u 14:15.
Predavač: Vladimir Božin, Matematički fakultet, Univerzitet u Beogradu
Naslov i apstrakt predavanja biće naknadno objavljeni
Naredni sastanak Seminara biće održan u četvrtak, 20 juna 2019. u sali 301f Matematičkog instituta SANU. U okviru ovog sastanka, planirana su dva predavanja.
Prvo predavanje, 20. jun 2019, 16:00
Predavač: Ilja Gogić, Department of Mathematics, Faculty of Science, University of Zagreb
Naslov predavanja: CENTRALLY STABLE ALGEBRAS
Apstrakt:
We define an algebra A to be centrally stable if, for every epimorphism F from A to another algebra B, the center Z(B) of B is equal to F(Z(A)), the image of the center of A. After providing some examples and basic observations, we consider in somewhat greater detail central stability in tensor products of algebras, and finally establish our main result which states that a finite-dimensional unital algebra A over a perfect field F is centrally stable if and only if A is isomorphic to a finite direct product of algebras A_i, where each A_i is a tensor product of a commutative algebra and a central simple algebra over some finite field extension of F.
This is a joint work with Matej Bresar (University of Ljubljana and University of Maribor).
Prvo predavanje, 20. jun 2019, 17:15
Predavač: Igor Pažanin, Department of Mathematics Faculty of Science, University of Zagreb
Naslov predavanja: MATHEMATICAL ANALYSIS OF MICROPOLAR FLUID FLOW IN THIN DOMAINS: RIGOROUS DERIVATION OF NEW MODELS
Apstrakt:
The micropolar fluid model represents an essential generalization of the well-established Navier-Stokes model which takes into account the microstructure of the fluid. It describes the behavior of numerous real fluids (e.g. liquid crystals,blood, muddy fluids, certain polymeric fluids, even water in models with small scales) better than the classical model. The aim of this talk is to present some of our results on the asymptotic approximation of the micropolar fluid flow in thin pipe-like domains. We begin by considering an incompressible micropolar fluid flowing through an undeformed straight pipe and find the effective behavior of the flow via rigorous asymptotic analysis with respect to the pipe’s thickness. Since the engineering practice requires extensive knowledge of curved-pipe flows, we extend our analysis to the case of general curved pipe with an arbitrary central curve. Using differential geometry tools and two-scale asymptotic technique, we construct the approximation explicitly acknowledging the effects of fluid microstructure and pipe’s distortion. We provide the rigorous justification of the obtained effective model by proving the corresponding error estimate. Finally, we also investigate the micropolar fluid flowing through a thin pipe with specific helical shape not entering in the above framework.
Naredni sastanak Seminara biće održan u utorak, 18. juna 2019. u sali 301f Matematičkog instituta SANU sa početkom u 14:15.
Predavač: Prof. dr Sergei Prokhorov, Institute for System Programming Russian Academy of Sciences Moscow Institute of Physics and Technology
Naslov predavanja: IT RESEARCH AND EDUCATION IN RUSSIA
Apstrakt:
The Institute for System Programming of the Russian Academy of Sciences (ISP) and the Moscow Institute of Physics and Technology (MIPT) are leaders in the field of IT research and education in Russia. The ISP is a leader in software development, as well as IT and its applications. MIPT is the leading technical university in Russia. Both institutes participate in the National Federal IT programs. Using the example of these two institutes, this lecture will try to present the status of work in the field of IT research and education at the Russian Academy of Sciences and at technical universities. We will present the most significant scientific results, describe the education process and cooperation with industry. Finally, we will discuss the problems and challenges that these institutes face and how they are solved.
Biography: Sergei Prokhorov is a leading researcher at the Institute for System Programming Russian Academy of Sciences, and a leading researcher and associate professor at the Moscow Institute of Physics and Technology. He is in chair of Russian Branch of IEEE Computer Society. His areas of interest include computer science and history of science and technology development.
Predstavljanje izveštaja o urađenoj doktorskoj disertaciji „Mere nekompaktnosti na Hilbertovim C*- modulima“, kandidata Zlatka Lazovića biće održano u četvrtak, 20.06.2019. godine u sali 840 sa početkom u 11 časova.
detaljnijeNaredni sastanak Seminara biće održan u četvrtak, 13. juna 2019. u sali 718 Matematičkog fakulteta sa početkom u 18:15.
U okviru sastanka Seminara, koleginica Ivana Tanasijević će predstaviti predlog prijave teme svoje doktorske teze pod nazivom "Multimedijalne baze podataka u upravljanju nematerijalnim kulturnim nasleđem".
Više detalja može se pronaći na stranici: http://computing.matf.bg.ac.rs/
Naredni sastanak Seminara biće održan u utorak, 11. juna 2019. u sali 301f Matematičkog instituta SANU sa početkom u 14:15.
Predavač: Ismael González Yero, Departamento de Matemáticas, Escuela Politécnica Superior de Algeciras, Universidad de Cádiz, Spain
Naslov predavanja: ON THE FRACTIONAL VERSION OF THE k-METRIC DIMENSION OF GRAPHS
Apstrakt
Napomena: Prof. Yero će 12. juna 2019. biti dostupan za diskusiju u Matematičkom institutu SANU od 11 časova.
Naredni sastanak Seminara biće održan u ponedeljak, 10. juna 2019. u sali 301f Matematičkog instituta SANU sa početkom u 16:15.
Predavač: Vladimir Manuilov, Moscow State University
Naslov predavanja: HILBERT C*-MODULES: OPERATORS AND BILINEAR FORMS
Apstrakt: We survey the theory of Hilbert C*-modules with the emphasis on self-duality and reflexivity. In the special case of Hilbert C*-modules over W*-algebras we address the problem of complementability of submodules and show it fails in a very strong sense: there exist non-complementable submodules coinciding with their second orthogonal complement. We also consider sesquilinear forms on Hilbert C*-modules and prove a version of the Lax-Milgram theorem: given Hilbert C*-modules X, Y over a W*-algebra A, a form B : X x Y -> A satisfying certain conditions, and a `functional` t : Y -> A, there exists x in X such that B(x,y)=t(y).
Naredni sastanak Seminara biće održan u četvrtak, 6. juna 2019. u sali 301f Matematičkog instituta SANU sa početkom u 17:15.
Predavač: Dejan Urošević, Matematički fakultet, Univerzitet u Beogradu
Naslov predavanja: SUPERNOVA KROZ ISTORIJU
Apstrakt: U ovom izlaganju biće nabrojane sve eksplozije supernovih koje su zabeležene u istorijskim izvorima. Biće posebno naglašeni događaji koji su mogli da budu posmatrani sa severne Zemljine polulopte, pa samim tim i sa teritorije koju zahvata današnja Srbija. Biće pokriven period od poslednja dva milenijuma u kome je zabeleženo desetak ovih spektakularnih astronomskih pojava. Uporedo, prikazaće se kratak društveno-istorijski okvir za svaku od epoha u kojima su se viđale "nove" zvezde na nebu sa posebnim naglaskom na teritoriju koju obuhvata naša zemlja.
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