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Current Problems in Numerical Analysis

usually takes place each Friday, at 09:00 in IM, front building, third floor
Chair: Michal Křížek, Pavel Kůs, Jakub Šístek, Tomáš Vejchodský
Old web page with the seminar history: http://users.math.cas.cz/~okmma/

Dual n-simplices

Michal Křížek
Institute of Mathematics of the CAS
Friday, 15. September 2017 - 9:00 to 10:00

Filtered subspace iteration for self-adjoint operators

Luka Grubišić
University of Zagreb
Friday, 6. October 2017 - 9:00 to 10:00
Filtered subspace iteration with Rayleigh-Ritz eigenvalue extraction is a method which has recently seen an interesting revival in the form of the FEAST algorithm. In this talk we present a method motivated by the FEAST iteration and apply it directly on the operator level. The core of the algorithm is a numerical resolvent calculus based on contour quadratures. And so, discretizing resolvents of self-adjoint operators in a robust way is the key ingredient of a successful algorithm. We use discontinuous Petrov-Galerkin method to construct a discretized resolvent function and obtain mesh independent convergence rate for the eigenvalue approximation method. We present numerical experiments with Schroedinger Hamiltonians as model problems.

Multiscale simulation for the incompressible Navier-Stokes-Fokker-Planck equations

Bangwei She
Institute of Mathematics of the CAS
Friday, 13. October 2017 - 9:00 to 10:00

Gregor Mendel and his contribution to biostatistics

Jan Kalina

Institute of Computer Science of the CAS, Prague

Friday, 20. October 2017 - 9:00 to 10:00

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