Solving Large-Scale Quadratic Eigenvalue Problems with Hamiltonian eigenstructure using a Structure-Preserving Krylov Subspace Method
Solving Large-Scale Quadratic Eigenvalue Problems with Hamiltonian eigenstructure using a Structure-Preserving Krylov Subspace Method
复制标题
使用结构保持 Krylov 子空间方法求解具有哈密顿特征结构的大规模二次特征值问题
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
M. Stoll
中科院分区:
文献类型:
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作者:
P. Benner;H. Faßbender;M. Stoll
We consider the numerical solution of quadratic eigenproblems with spectra that exhibit Hamiltonian symmetry. We propose to solve such problems by applying a Krylov-Schur-type method based on the symplectic Lanczos process to a structured linearization of the quadratic matrix polynomial. In order to compute interior eigenvalues, we propose several shift-and-invert operators with Hamiltonian structure. Our approach is tested for several examples from structural analysis and gyroscopic systems.