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Pregled bibliografske jedinice broj: 575595

Orthosymmetric Block Rotations


Singer, Sanja
Orthosymmetric Block Rotations // The Electronic Journal of Linear Algebra, 23 (2012), 306-326 (međunarodna recenzija, članak, znanstveni)


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Naslov
Orthosymmetric Block Rotations

Autori
Singer, Sanja

Izvornik
The Electronic Journal of Linear Algebra (1081-3810) 23 (2012); 306-326

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
orthosymmetric unitary matrices; orthosymmetric block rotations; generalized polar decomposition; QR-like factorization; test matrix generation

Sažetak
Rotations are essential transformations in many parts of numerical linear algebra. In this paper it is shown that there exists a family of matrices unitary with respect to an orthosymmetric scalar product $J$, that can be decomposed into the product of two $J$-unitary matrices---a block diagonal matrix and an orthosymmetric block rotation. This decomposition can be used for computing various one-sided and two-sided matrix transformations by divide-and-conquer or tree-like algorithms. As an illustration, a blocked version of the QR-like factorization of a given matrix is considered.

Izvorni jezik
Engleski

Znanstvena područja
Matematika



POVEZANOST RADA


Projekti:
037-1193086-2771 - Numeričke metode u geofizičkim modelima (Singer, Saša, MZOS ) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Matematički odjel, Zagreb

Profili:

Avatar Url Sanja Singer (autor)

Citiraj ovu publikaciju:

Singer, Sanja
Orthosymmetric Block Rotations // The Electronic Journal of Linear Algebra, 23 (2012), 306-326 (međunarodna recenzija, članak, znanstveni)
Singer, S. (2012) Orthosymmetric Block Rotations. The Electronic Journal of Linear Algebra, 23, 306-326.
@article{article, author = {Singer, S.}, year = {2012}, pages = {306-326}, keywords = {orthosymmetric unitary matrices, orthosymmetric block rotations, generalized polar decomposition, QR-like factorization, test matrix generation}, journal = {The Electronic Journal of Linear Algebra}, volume = {23}, issn = {1081-3810}, title = {Orthosymmetric Block Rotations}, keyword = {orthosymmetric unitary matrices, orthosymmetric block rotations, generalized polar decomposition, QR-like factorization, test matrix generation} }
@article{article, author = {Singer, S.}, year = {2012}, pages = {306-326}, keywords = {orthosymmetric unitary matrices, orthosymmetric block rotations, generalized polar decomposition, QR-like factorization, test matrix generation}, journal = {The Electronic Journal of Linear Algebra}, volume = {23}, issn = {1081-3810}, title = {Orthosymmetric Block Rotations}, keyword = {orthosymmetric unitary matrices, orthosymmetric block rotations, generalized polar decomposition, QR-like factorization, test matrix generation} }

Časopis indeksira:


  • Scopus


Uključenost u ostale bibliografske baze podataka::


  • MathSciNet
  • Zentrallblatt für Mathematik/Mathematical Abstracts





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