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1-TYPE LIPSCHITZ SELECTIONS IN GENERALIZED 2-NORMED SPACES

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Analysis in Theory and Applications 2008年第3期24卷 205-210页

作者： sh. rezapour I. Kupka Azarbaidjan University of Tarbiat Moallem Physics and Informatics of Comenius University

We sh.ll introduce 1-type Lipschitz multifunctions from R into generalized 2-normed spaces, and give some results about their 1-type Lipschitz selections.

关键词： multifunction 2-normed space Lipschitz selection

A HYBRID FIXED POINT RESULT FOR LIPSCHITZ HOMOMORPHISMS ON QUASI-BANACH ALGEBRAS

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Analysis in Theory and Applications 2011年第2期27卷 109-116页

作者： sh. rezapour M. Derafsh.our Azarbaidjan University of Tarbiat Moallem

We sh.ll generalize the results of [9] about characterization of isomorphisms on quasi-Banach algebras by providing integral type conditions. Also, we sh.ll give some new results in this way and finally, give a result... 详细信息

关键词： homomorphism hybrid fixed point integral-type condition p-norm quasi- Banach algebra

ON SIMULTANEOUS WEAKLY-CHEBYsh.V SUBSPACES

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Analysis in Theory and Applications 2011年第2期27卷 117-124页

作者： sh. rezapour H. Alizadeh S. M. Vaezpour Azarbaidjan University of Tarbiat Moallem Aazad Islamic University Amirkabir University of Technology

In this paper, we sh.ll introduce and characterize simultaneous quasi-Chebysh.v （and weakly-Chebysh.v） subspaces of normed spaces with respect to a bounded set S by using elements of the dual space.

关键词： dual space best simultaneous approximation simultaneous quasi-Chebysh.vsubspace simultaneous weakly-Chebysh.v subspace

Fixed Point of Multivalued Operators on Partial Metric Spaces

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Analysis in Theory and Applications 2013年第2期29卷 158-168页

作者： P. Amiri sh. rezapour Department of Mathematics Azarbaidjan Shahid Madani University Azarshalr Tabriz Iran

In this paper, we prove some results on fixed point of multivalued operators on partial metric spaces.

关键词： Fixed point multivalued operator partial metric space.

ε-WEAKLY CHEBYsh.V SUBSPACES OF BANACH SPACES

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Analysis in Theory and Applications 2003年第2期19卷 130-135页

作者： sh.rezapour Azarbaidjan University of Tarbiat Iran

We will define and characterize ε-weakly Chebysh.v subspaces of Banach spaces. We will prove that all closed subspaces of a Banach space X are ε-weakly Chebysh.v if and only if X is reflexive.

关键词： ε-quasi Chebysh.v subspace ε-weakly Chebysh.v subspace

PROXIMINAL SUBSPACES OF 2-NORMED SPACES

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Analysis in Theory and Applications 2006年第2期22卷 114-119页

作者： sh.rezapour Azarbaidjan University of Tarbiat Moallem Iran

In 1965 Gohler introduced 2-normed spaces and since then, this topic have been intensively studied and developed. We sh.ll introduce the notion of 1-type proximinal subspaces of 2-normed spaces and give some results i... 详细信息

关键词： b-proximinal subspaces 1-type proximinal subspaces 2-functionals

ON SUM AND QUOTIENT OF QUASI-CHEBYsh.V SUBSPACES IN BANACH SPACES

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Analysis in Theory and Applications 2003年第3期19卷 266-272页

作者： H.Mohebi sh.rezapour Faculty of Mathematics sh.hid Bahonar University of Kerman Department of Mathematics Azarbaidjan University of Tarbiat Kerman IranMoallem Tarbiat Iran

It will be determined under what conditions types of proximinality are transmitted to and from quotient spaces. In the final section, by many examples we sh.w that types of proximinality of subspaces in Banach spaces ... 详细信息

关键词： proximinality Chebysh.v subspace pseudo-Chebysh.v subspace quasi-Chebysh.v subspace equivalent norms

ABSOLUTE RETRACTIVITY OF SOME SETS TO TWO-VARIABLES MULTIFUNCTIONS

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Analysis in Theory and Applications 2012年第1期28卷 73-78页

作者： H.Afsh.ri sh.rezapour sh.hid Madani University Iran

In this paper, by providing some different conditions respect to another works, we sh.ll present two results on absolute retractivity of some sets related to some multifunctions of the form F ： X × X → Pb,cl （X）,... 详细信息

关键词： absolute retract fixed points set multifunction