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pro vyhledávání: '"Breu, Tobias"'
Autor:
Bloch, Jacques C. R., Breu, Tobias, Frommer, Andreas, Heybrock, Simon, Schäfer, Katrin, Wettig, Tilo
Publikováno v:
PoS LAT2009:043,2009
Rational approximations of the matrix sign function lead to multishift methods. For non-Hermitian matrices long recurrences can cause storage problems, which can be circumvented with restarts. Together with deflation we obtain efficient iterative met
Externí odkaz:
http://arxiv.org/abs/0910.2927
Autor:
Bloch, Jacques C. R., Breu, Tobias, Frommer, Andreas, Heybrock, Simon, Schäfer, Katrin, Wettig, Tilo
Publikováno v:
Comput.Phys.Commun.181:1378-1387,2010
The overlap operator in lattice QCD requires the computation of the sign function of a matrix, which is non-Hermitian in the presence of a quark chemical potential. In previous work we introduced an Arnoldi-based Krylov subspace approximation, which
Externí odkaz:
http://arxiv.org/abs/0910.1048
Publikováno v:
PoS LATTICE2008:027,2008
The overlap Dirac operator at nonzero quark chemical potential involves the computation of the sign function of a non-Hermitian matrix. In this talk we present iterative Krylov subspace approximations, with deflation of critical eigenvalues, which we
Externí odkaz:
http://arxiv.org/abs/0810.4228
Autor:
Breu, Tobias
Edge instabilities in fusion plasmas with two different fluid models of the plasma were investigated, ideal linear magnetohydrodynamics (MHD) and the nonlinear gyrofluid model GEM. The focus was on ideal ballooning instabilites, caused by steep press
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______518::89658cf78a0637be4ab369827f7f5c38
https://mediatum.ub.tum.de/doc/1083335/document.pdf
https://mediatum.ub.tum.de/doc/1083335/document.pdf
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