Volume 5, Issue 1 Rahmatollah Lashkaripour G. Talebi Lower bound for the norm of lower triangular matrices on block weighted sequence 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 Rahmatollah Lashkaripour G. Talebi Find more articles with the same keywords norm upper bound lower triangular matrix Nörlund matrices weighted mean matrices block weighted sequence space Find more articles with the same subject classes 26D15 47A30 40G05 47D37 46A45 54D55