4.3 Article

Local stability of the Pexiderized Cauchy and Jensen's equations in fuzzy spaces

Journal

Publisher

SPRINGEROPEN
DOI: 10.1186/1029-242X-2011-78

Keywords

Pexiderized Cauchy functional equation; generalized Hyers-Ulam stability; Jensen functional equation; non-Archimedean space

Funding

  1. Korea Research Foundation (KRF)
  2. Korea government (MEST) [2009-0075850]
  3. National Research Foundation of Korea [2009-0075850] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Lex X be a normed space and Y be a Banach fuzzy space. Let D = {( x, y) is an element of X x X : parallel to x parallel to + parallel to y parallel to >= d} where d > 0. We prove that the Pexiderized Jensen functional equation is stable in the fuzzy norm for functions defined on D and taking values in Y. We consider also the Pexiderized Cauchy functional equation.

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