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Title of Journal: Ukr Math J

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Abbravation: Ukrainian Mathematical Journal

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Springer US

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10.1007/s11243-011-9572-1

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1573-9376

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On the Sum of Narrow and FiniteRank Orthogonally

Authors: H I Humenchuk
Publish Date: 2016/07/16
Volume: 67, Issue: 12, Pages: 1831-1837
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Abstract

It is well known that the sum of two linear continuous narrow operators in the spaces Lp with 1 p ∞ is not necessarily a narrow operator However the sum of a narrow operator and a compact linear continuous operator is a narrow operator In a recent paper Pliev and Popov originated the investigation of nonlinear narrow operators and in particular of orthogonally additive operators As our main result we prove that the sum of a narrow orthogonally additive operator and a finiterank laterallytonorm continuous orthogonally additive operator acting from an atomless Dedekind complete vector lattice into a Banach space is a narrow operator


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