A Shifted Block Lanczos Algorithm for Solving Sparse Symmetric Generalized Eigenproblems
SIAM Journal on Matrix Analysis and Applications
The symmetric eigenvalue problem
The symmetric eigenvalue problem
SIAM Journal on Scientific Computing
An Algebraic Substructuring Method for Large-Scale Eigenvalue Calculation
SIAM Journal on Scientific Computing
Improving eigenpairs of automated multilevel substructuring with subspace iterations
Computers and Structures
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Algebraic sub-structuring refers to the process of applying matrix reordering and partitioning algorithms to divide a large sparse matrix into smaller submatrices from which a subset of spectral components are extracted and combined to form approximate solutions to the original problem. In this paper, we show that algebraic sub-structuring can be effectively used to solve generalized eigenvalue problems arising from the finite element analysis of an accelerator structure.