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On Extended Real Valued Quasi-Concave Functions

Year: 1400
COI: JR_KJMMRC-10-2_012
Language: EnglishView: 66
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Somayeh Mirzadeh - Department of Mathematics, Hormozgan university, Bandar abbas, Iran
samaneh bahrami - Department of Mathematics, Shahid Bahonar University of Kerman, Kerman, Iran


In this paper, we first study the non-positive decreasing and inverse co-radiantfunctions defined on a real locally convex topological vector space X. Next, we characterize non-positive increasing, co-radiant and quasi-concave functions over X. In fact, we examine abstract concavity, upper support set and superdifferential of this class of functions by applying a type of duality. Finally, we present abstract concavity of extended real valued increasing, co-radiant and quasi-concave functions.


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Mirzadeh, Somayeh and bahrami, samaneh,1400,On Extended Real Valued Quasi-Concave Functions,

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