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- Roger B. Sidje
- Univ. of Queensland, Brisbane, Australia
書誌事項
- タイトル別名
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- a software package for computing matrix exponentials
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説明
<jats:p>Expokit provides a set of routines aimed at computing matrix exponentials. More precisely, it computes either a small matrix exponential in full, the action of a large sparse matrix exponential on an operand vector, or the solution of a system of linear OBEs with constant inhomogeneity. The backbone of the sparse routines consists of matrix-free Krylov subspace projection methods (Arnoldi and Lanczos processes), and that is why the toolkit is capable of coping with sparse matrices of large dimension. The software handles real and complex matrices and provides specific routines for symmetric and Hermitian matrices. The computation of matrix exponentials is a numerical issue of critical importance in the area of Markov chains and furthermore, the computed solution is subject to probabilistic constraints. In addition to addressing general matrix exponentials, a distinct attention is assigned to the computation of transient states of Markov chains.</jats:p>
収録刊行物
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- ACM Transactions on Mathematical Software
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ACM Transactions on Mathematical Software 24 (1), 130-156, 1998-03
Association for Computing Machinery (ACM)