J. M. Delgado, Cándido Piñeiro
Abstract
Let ${\mathcal A}$ be a Banach operator ideal. Based on the notion of ${\mathcal A}$-compactness in a Banach space due to Carl and Stephani, we deal with the notion of measure of non-${\mathcal A}$-compactness of an operator. We consider a map $\chi _{\ma
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Let ${\mathcal A}$ be a Banach operator ideal. Based on the notion of ${\mathcal A}$-compactness in a Banach space due to Carl and Stephani, we deal with the notion of measure of non-${\mathcal A}$-compactness of an operator. We consider a map $\chi _{\ma
Key concepts: Compact space, Mathematics, Banach space, Compact operator, Duality (order theory), Measure (data warehouse), Ideal (ethics), Operator (biology)