Volume 9, Issue 1 G. Krishna Kumar S. H. Lui Pseudospectrum and condition spectrum Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors G. Krishna Kumar S. H. Lui Find more articles with the same keywords eigenvalues pseudospectrum condition spectrum spectral mapping theorem Find more articles with the same subject classes 47A10 47A11 65F15 65F35