Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Rozložník Miroslav"'
Publikováno v:
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, Vol 28, Iss 2, Pp 149-159 (2020)
The problem of solving large-scale systems of linear algebraic equations arises in a wide range of applications. In many cases the preconditioned iterative method is a method of choice. This paper deals with the approximate inverse preconditioning AI
Externí odkaz:
https://doaj.org/article/49efa9f7fb0c40289f0a9f20a689f8c9
Publikováno v:
Special Matrices, Vol 5, Iss 1, Pp 225-241 (2017)
This paper builds upon the results in the article “G-matrices, J-orthogonal matrices, and their sign patterns", Czechoslovak Math. J. 66 (2016), 653-670, by Hall and Rozloznik. A number of further general results on the sign patterns of the J-ortho
Externí odkaz:
https://doaj.org/article/6e79d0d0a28745cfabb8ef8148e65bae
In this paper we give the detailed error analysis of two algorithms $W_1$ and $W_2$ for computing the symplectic factorization of a symmetric positive definite and symplectic matrix $A \in \mathbb R^{2n \times 2n}$ in the form $A=LL^T$, where $L \in
Externí odkaz:
http://arxiv.org/abs/2310.07662
Block Gram-Schmidt algorithms serve as essential kernels in many scientific computing applications, but for many commonly used variants, a rigorous treatment of their stability properties remains open. This work provides a comprehensive categorizatio
Externí odkaz:
http://arxiv.org/abs/2010.12058
In this paper we analyze the nearly optimal block diagonal scalings of the rows of one factor and the columns of the other factor in the triangular form of the SR decomposition. The result is a block generalization of the result of the van der Sluis
Externí odkaz:
http://arxiv.org/abs/2004.03288
Publikováno v:
In Linear Algebra and Its Applications 1 April 2022 638:150-195