Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Mario Arioli"'
Publikováno v:
Advanced Modeling and Simulation in Engineering Sciences, Vol 7, Iss 1, Pp 1-20 (2020)
Abstract Kinematic relationships between degrees of freedom, also named multi-point constraints, are frequently used in structural mechanics. In this paper, the Craig variant of the Golub-Kahan bidiagonalization algorithm is used as an iterative meth
Externí odkaz:
https://doaj.org/article/3c62dd467d734adab416b4bb7462c80d
Publikováno v:
Advanced Modeling and Simulation in Engineering Sciences, Vol 7, Iss 1, Pp 1-20 (2020)
Advanced Modeling and Simulation in Engineering Sciences
Advanced Modeling and Simulation in Engineering Sciences, 2020, 7 (1), ⟨10.1186/s40323-020-00181-2⟩
Advanced Modeling and Simulation in Engineering Sciences, SpringerOpen, 2020, 7 (1), ⟨10.1186/s40323-020-00181-2⟩
Advanced Modeling and Simulation in Engineering Sciences
Advanced Modeling and Simulation in Engineering Sciences, 2020, 7 (1), ⟨10.1186/s40323-020-00181-2⟩
Advanced Modeling and Simulation in Engineering Sciences, SpringerOpen, 2020, 7 (1), ⟨10.1186/s40323-020-00181-2⟩
Kinematic relationships between degrees of freedom, also named multi-point constraints, are frequently used in structural mechanics. In this paper, the Craig variant of the Golub-Kahan bidiagonalization algorithm is used as an iterative method to sol
We present a scalability study of Golub-Kahan bidiagonalization for the parallel iterative solution of symmetric indefinite linear systems with a 2x2 block structure. The algorithms have been implemented within the parallel numerical library PETSc. S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fb7d479ba9bdd10302b9114c0014c9e
http://arxiv.org/abs/2001.10424
http://arxiv.org/abs/2001.10424
Publikováno v:
Parallel Processing and Applied Mathematics ISBN: 9783030432287
PPAM (1)
PPAM (1)
We present an iterative method based on a generalization of the Golub-Kahan bidiagonalization for solving indefinite matrices with a 2 \(\times \) 2 block structure. We focus in particular on our recent implementation of the algorithm using the paral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa5242d031f876561a9ab4271bada63c
https://doi.org/10.1007/978-3-030-43229-4_10
https://doi.org/10.1007/978-3-030-43229-4_10
Autor:
Mario Arioli, Michele Benzi
Publikováno v:
IMA Journal of Numerical Analysis. 38:1119-1163
We study the numerical solution of boundary and initial value problems for differential equations posed on graphs or networks. The graphs of interest are quantum graphs, i.e., metric graphs endowed with a differential operator acting on functions def
Autor:
Daniel Loghin, Mario Arioli
Publikováno v:
Linear Algebra and its Applications. 488:168-183
In this work we analyse the Steklov–Poincare (or interface Schur complement) matrix arising in a domain decomposition method in the presence of anisotropy. Our problem is formulated such that three types of anisotropy are being considered: refineme
Autor:
Mario Arioli, Iain S. Duff
Publikováno v:
SIAM Journal on Scientific Computing. 37:S544-S561
We study the solution of the linear least-squares problem $\min_x \| b - A x \|^2_2$ where the matrix $A \in {\Bbb R}^{m \times n}$ ($ m \ge n$) has rank $n$ and is large and sparse. We assume that $A$ is available as a matrix, not an operator. The p
Autor:
Dominique Orban, Mario Arioli
Publikováno v:
Iterative Solution of Symmetric Quasi-Definite Linear Systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25cf9de83cce0ac17365e8ae060e7ccd
https://doi.org/10.1137/1.9781611974737.ch4
https://doi.org/10.1137/1.9781611974737.ch4
Autor:
Dominique Orban, Mario Arioli
Publikováno v:
Iterative Solution of Symmetric Quasi-Definite Linear Systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d58d5d9a932b0ee6302310b141d23e4b
https://doi.org/10.1137/1.9781611974737.ch2
https://doi.org/10.1137/1.9781611974737.ch2