-- PROGRAM ZA JUN 2003 --

VANREDNI SASTANAK!

Utorak, 03. jun 2003. u 11h:

Professor Adelina Georgescu, Dept. of Applied Mathematics Faculty of Mathematics and Computer Sciences University of Pitesti, Romania
Methods based on Fourier series in hydromagnetic stability theory

Abstract: In linear stability of fluid flows and equilibria subject to several effects (e.g. temperature, concentration, magnetic field) the governing ordinary differential equations are of high order (usually more than 10) and contain several (usually more than three) parameters. In addition, the equations are not selfadjoint and the corresponding eigenvalues are not simple. Finally, the boundary conditions are quite complicate. As a consequence the Fourier series expansion methods of Galerkin type based on total sets of expansion functions satisfaying all boundary conditions are no longer appropriate. This is why we used Budiansky-DiPrima method in which the expansion functions do not satisfy all boundary conditions, thus introducing some constraints. We reveal the main steps in its application to magnetic convections. We also show the advantages and the peculiarities of this method if applied to the associated variational setting.

Petak, 27. jun 2003. u 11h:

Radoslav Dimitric, University of California, Berkeley, Texas A&M University
ABELOVA NAGRADA

Kroz uvod u najvecu matematicku nagradu upoznacu slusaoce sa sopstvenim matematickim radom i mojim dodirnim tackama sa ovom nagradom i nekim okolnostima vezanim za nju.

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