Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Rank-modification"'
Autor:
Sofia Eriksson, Jonas Nordqvist
Publikováno v:
Results in Applied Mathematics, Vol 22, Iss , Pp 100463- (2024)
Square matrices of the form A˜=A+eDf∗ are considered. An explicit expression for the inverse is given, provided A˜ and D are invertible with rank(A˜)=rank(A)+rank(eDf∗). The inverse is presented in two ways, one that uses singular value decomp
Externí odkaz:
https://doaj.org/article/62053fb26c8a4ed6b94a4361f3126bd0
Akademický článek
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Some fast algorithms for computing the eigenvalues of a block companion matrix $A = U + XY^H$, where $U\in \mathbb C^{n\times n}$ is unitary block circulant and $X, Y \in\mathbb{C}^{n \times k}$, have recently appeared in the literature. Most of thes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::390203345895df29618f89454b9e44f3
Autor:
David I. Lekhovytskiy
Publikováno v:
Radioelectronics and Communications Systems; Том 61, № 11 (2018); 477-514
Adaptive systems protecting pulse radars from non-stationary in time (range) clutter echoes are usually tuned using training vectors composed of complex amplitudes of input signals and comprising a finite-length “sliding window” of data. From any
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b09b1ce63309940c671af312e15feed8
http://radioelektronika.org/article/view/S0735272718110018
http://radioelektronika.org/article/view/S0735272718110018
Autor:
Tomislav P. Živković
Publikováno v:
Journal of Mathematical Chemistry. 49:35-78
LRM (Low Rank Modification) is a mathematical method that produces eigenvalues and eigenstates of generalized eigenvalue equations. It is similar to the perturbation expansion in that it assumes the knowledge of the eigenvalues and eigenstates of som
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0db88c6fe504893b9faede18777ff44e
https://doi.org/10.1007/s10910-010-9730-2
https://doi.org/10.1007/s10910-010-9730-2
Autor:
Xinmao Wang
Publikováno v:
Computers & Mathematics with Applications. 54:819-825
The condition number of a matrix plays an important role in numerical matrix computations. In this paper, we investigate how much the small rank modification method can reduce the condition number of a matrix.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8e98c549532f9b5fb9dda83277b5fc0
https://doi.org/10.1016/j.camwa.2006.05.031
https://doi.org/10.1016/j.camwa.2006.05.031
Akademický článek
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Dissertation/ Thesis
Autor:
Soodhalter, Kirk McLane
Krylov subspace iterative methods provide an effective tool for reducing the solution of large linear systems to a size for which a direct solver may be applied. However, the problems of limited storage and speed are still a concern. Therefore, in th
Externí odkaz:
http://hdl.handle.net/20.500.12613/2438
Krylov subspace iterative methods provide an effective tool for reducing the solution of large linear systems to a size for which a direct solver may be applied. However, the problems of limited storage and speed are still a concern. Therefore, in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e15acac43d7e9b28b19cf64db4dd446