شماره ركورد كنفرانس :
5263
عنوان مقاله :
On extension of Norm Derivatives
پديدآورندگان :
Faryad Elias faryad.elias@gmail.com Department of Pure Mathematics, Ferdowsi University of Mashhad, P. O. Box 1159, Mashhad 91775, Iran.
كليدواژه :
Norm Derivatives , Smooth Space , Roberts Orthogonality , Birkhoff , James Orthogonality
عنوان كنفرانس :
54 امين كنفرانس رياضي ايران
چكيده فارسي :
In this paper we introduce an extension of ρ- orthogonalityand present some of its essential properties. We also apply it to obtainsome relations with smoothness of real normed linear spaces. Amongother things, we give a characterization of the Roberts- orthogonality forelements of a real Banach space.