Volume 20, Issue 3 Hamid Nkhaylia Multiplicatively pseudo spectrum preserving maps on Banach spaces 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 Hamid Nkhaylia Find more articles with the same keywords pseudo spectrum pseudo spectral radius nonlinear preserver Find more articles with the same subject classes 47B49 47A10 47A11