Results 301 to 310 of about 2,606,652 (334)

The restarted shift-and-invert Krylov method for matrix functions

Numerical Linear Algebra with Applications, 2012
In this paper, the numerical evaluation of matrix functions expressed in partial fraction form is addressed. The shift-and-invert Krylov method is analyzed, with special attention to error estimates. Such estimates give insights into the selection of the shift parameter and lead to a simple and effective restart procedure.
I. Moret, POPOLIZIO, MARINA
openaire   +4 more sources

Algorithm 10: Inverting a Symmetrical Matrix in Place

Environment and Planning A: Economy and Space, 1980
Language Subroutine SYM is written in ANSI Fortran.
B Harris, Referee J Burdett
openaire   +3 more sources

A New Method for Inverting Fermionic Matrix

1986
The Alternate Directions Implicit method is generalized and used to compute quark propagators in quenched QCD. Preliminary results on the chiral properties of the theory and on the spectrum of hadrons agree with those obtained with other approaches.
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Inverting a Vandermonde matrix in minimum parallel time

Information Processing Letters, 1991
In this note, we address the problem of computing \(V^{-1}\), where \(V=(\lambda_ j^{i-1})_{ij}\) is a Vandermonde matrix and where the entries of \(V\) are elements of a field \(\mathcal F\). The computation model adopted is the arithmetic network, which is a synchronized interconnection of arithmetic modules, each capable of performing an arithmetic ...
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Program for Inverting a Gramian Matrix [PDF]

Educational and Psychological Measurement, 1961
Henry F. Kaiser, Kern Dickman
openaire   +1 more source

Axis of Evil: An Inverted Threat Matrix

2008
President George W. Bush’s 2002 State of the Union Address greatly expanded the war on terror from a focus on al Qaeda and its Afghan Taliban hosts to three rogue states seeking dangerous weapons of mass destruction: Iraq, Iran, and North Korea. Bush labeled these countries “an axis of evil” that threatened world peace: “By seeking weapons of mass ...
openaire   +2 more sources

Contravariant Adaptation on the Manifold of Invertible Matrix Transfer Functions

IEEE Signal Processing Letters, 2017
T. Moon, J. Gunther
semanticscholar   +1 more source

Higher Gauging and Non-invertible Condensation Defects

Communications in Mathematical Physics, 2023
Sahand Seifnashri
exaly  

Non-invertible Gauss law and axions

Journal of High Energy Physics, 2023
Yichul Choi, Vinod Kumar
exaly  

Symmetry TFTs and anomalies of non-invertible symmetries

Journal of High Energy Physics, 2023
Yunqin Zheng, Janghyuk Son
exaly