Mathematical Colloquim
Mathematical Colloquim
PROGRAM
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ODELJENJE ZA MATEMATIKU MATEMATIČKOG INSTITUTA SANU |
OPŠTI MATEMATIČKI SEMINAR NA MATEMATIČKOM FAKULTETU U BEOGRADU |
PROGRAM ZA DECEMBAR 2008
Petak, 05.12. 2008. u 14h, sala 2, SANU, BGD
Sergei SOLOVIEV, IRIT, Toulouse
NON-MAXIMALITY OF THE THEORY OF SYMMETRIC MONOIDAL CLOSED CATEGORIES AND
DEPENDENCY OF CATEGORICAL DIAGRAMS
Abstract: Some time ago we (L. Mehats, M. Spivakovsky, S. Soloviev) had shown
that there exists diagram of canonical natural transformations in SMCC
such that this diagram is commutative while the classical
diagram of "triple dual" is still non-commutative in some model,
i.e., there exists a non-trivial extension of the theory of SMCC
(the theory is non-maximal, as opposed to the case of Cartesian Closed
Categories studied by Dosen and Petric). Now in our recent work
with Antoine El Khoury we obtained an infinite series
of diagrams D_n (n\in N) such that the commutativity of D_{n+1}
does not imply the commutativity of D_n. (In the proof the SMCC of
semi-modules over semi-rings are used.) As a consequence
the study of dependency of diagrams in SMCCs is much more
important than in case of CCC. Various methods of verification of
dependency are discussed in the end of the talk.
Četvrtak, 18.12. 2008. u 14h, sala 2, MI SANU, BGD
Nenad Mladenović, Matematički institut SANU
METODA PROMENA OKOLINA U REŠAVANJU PROBLEMA KOMBINATORNE I GLOBALNE OPTIMIZACIJE
Sadrzaj: Za resavanje problema kombinatorne i globalne optimizacije postoji veliki broj egzaknih i pribliznih
metoda resavanja. Na predavanju ce biti izlozena jedna od pribliznih ili heuristickih metoda, Metoda promena
okolina. Bice reci i o savremenim trendovima hibridizacije egzaktnih i heuristickih pristupa.
Predavanja ce se odrzavati na Matematickom Institutu (sala 2), petkom sa pocetkom u 14 casova. Odeljenje za matematiku je opsti seminar sa najduzom tradicijom u Institutu.
Svakog meseca, jedno predavanje ce biti odrzano na Matematickom Fakultetu u terminu koji ce biti posebno odredjen.
Molimo sve zainteresovane ucesnike u radu naucnih sastanaka da posebno obrate paznju na vreme odrzavanja svakog sastanka. Na Matematickom fakultetu su moguce izmene termina.
Obavestenje o programu naucnih sastanaka ce biti objavljeno na oglasnim tablama MI (Beograd), MF (Beograd), PMF (Novi Sad), PMF (Nis) i PMF (Kragujevac).
Odeljenje za matematiku Matematickog instituta SANU
Stevan Pilipovic
Opsti matematicki seminar na Matematickom fakultetu u Beogradu,
Sinisa Vrecica
Ako zelite da se obavestenja o Vasim naucnim skupovima pojave u Newsletter of EMS (European Mathematical Society) i na Internetu na lokaciji EMS, onda se obratite na emsvesti@mi.sanu.ac.yu gde cete dobiti format obavestenja.