Superstability of Some Pexider-Type Functional Equation. (20th October 2010)

• Record Type: Journal Article
• Authors: Kim, Gwang Hui
• Other Names: Volodin Andrei Academic Editor.
• Is Part Of: Journal of inequalities and applications. Volume 2010(2010)
• Publication Date: 2010-10-20
• Subjects: Inequalities (Mathematics) -- Periodicals; 512.97
• DOI: 10.1155/2010/985348
• Languages: English
• ISSNs: 1029-242X

Abstract

Abstract : We will investigate the superstability of the sine functional equation from the following Pexider-type functional equationf ( x + y ) + g ( x − y ) = λ · h ( x ) k ( y ) (λ : constant ), which can be considered the mixed functional equation of the sine and cosine functions, the mixed functional equation of the hyperbolic sine and hyperbolic cosine functions, and the exponential-type functional equations.