On Sandwich Theorem for Delta-Subadditive and Delta-Superadditive Mappings
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DOI: 10.1007/s00025-016-0627-7
Abstract: In the present paper, inspired by methods contained in Gajda and Kominek (Stud Math 100:25–38, 1991) we generalize the well known sandwich theorem for subadditive and superadditive functionals to the case of delta-subadditive and delta-superadditive… read more here.
Keywords: superadditive mappings; delta subadditive; subadditive delta; sandwich theorem ... See more keywords