Volume 13, Issue 4 B. P. Duggal Isolated eigenvalues, poles and compact perturbations of Banach space operators 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 B. P. Duggal Find more articles with the same keywords Banach space operator left poles poles compact perturbations SVEP Fredholm operator Toeplitz operator abstract shift condition Find more articles with the same subject classes 47A10 47A55 47A53 47B40