Seminar

Giselle Monteiro
 (Institute of Mathematics, CAS)

On Preisach operators and piezoelectricity modeling

Abstract:

Preisach operators are rate independent hysteresis operators capable of reproducing minor loops, therefore they are well fitted to measurements of smart materials. Benefiting from this observation, some authors have proposed models for piezoelectricity assuming that all hysteresis effects are due to one single Preisach operator. More accurate models though have to account thermal effects. To address this problem, we introduce a notion of parameterdependent Preisach operator and investigate some properties of its inverse.
This is a joint work with P. Krejci.

Martin Fencl
 (University of West Bohemia, Pilsen)

Unilateral sources of an activator in reactiondiffusion systems describing Turing’s patterns

Abstract:

See the attachment.
prof. RNDr. Eduard Feireisl, DrSc.
Šárka Nečasová, Milan Pokorný
chairmen