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- W2005027098 abstract "The construction of an accurate approximation of the ϵ-pseudospectrum of a matrix by means of the standard grid method is a very demanding computational task. In this paper, we describe Cobra, a domain-based method for the computation of pseudospectra that combines predictor corrector path following with a one-dimensional grid. The algorithm offers large and medium grain parallelism and becomes particularly attractive when we seek fine resolution of the pseudospectrum boundary. We implement Cobra using standard LAPACK components and show that it is more robust than the existing path following technique and faster than it and the traditional grid method. Cobra is also combined with a partial SVD algorithm to produce an effective parallel method for computing the matrix pseudospectrum." @default.
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- W2005027098 date "2001-12-01" @default.
- W2005027098 modified "2023-10-18" @default.
- W2005027098 title "Cobra: Parallel path following for computing the matrix pseudospectrum" @default.
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- W2005027098 doi "https://doi.org/10.1016/s0167-8191(01)00121-1" @default.
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