On Pexider Differences in Topological Vector Spaces
Author(s) -
Abbas Najati,
Mohammad Reza Abdollahpour,
Gwang Hui Kim
Publication year - 2011
Publication title -
abstract and applied analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.228
H-Index - 56
eISSN - 1687-0409
pISSN - 1085-3375
DOI - 10.1155/2011/370104
Subject(s) - hausdorff space , mathematics , topological vector space , normed vector space , locally convex topological vector space , vector space , topological space , pure mathematics , topological tensor product , functional equation , vector field , space (punctuation) , normal space , topology (electrical circuits) , functional analysis , mathematical analysis , combinatorics , differential equation , computer science , geometry , biochemistry , chemistry , gene , operating system
Let be a normed space and a sequentially complete Hausdorff topological vector space over the field ℚ of rational numbers. Let 1={(,)∈×∶‖‖+‖‖≥}, and 2={(,)∈×∶‖‖+‖‖<} where >0. We prove that the Pexiderized Jensen functional equation is stable for functions defined on 1(2), and taking values in . We consider also the Pexiderized Cauchy functional equation
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