A distributional version of functional equations and their stabilities
โ Scribed by Jaeyoung Chung
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 204 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0362-546X
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๐ SIMILAR VOLUMES
The multivariate distributions whose characteristic functions satisfy a given integrated functional equation are proved to be essentially multivariate stable (semi-stable) distributions. This generalizes the characterization of univariate distributions in Ramachandran and Rao (1970), Shimizu (1968,
Making use of the fundamental solution of the heat equation we prove the stability theorems of quadratic functional equation and d'Alembert equation in the spaces of Schwartz distributions and Sato hyperfunctions.
m this paper, we shall apply an operator method for casting and solving the distributional analog of functional equations. In particular, the method will be employed to solve fi(z + y) + fz(z -y) + fs(2y) = 0.
The stability of the functional equation F (x + y) -G(xy) = 2H (x)K(y) over the domain of an abelian group G and the range of the complex field is investigated. Several related results extending a number of previously known ones, such as the ones dealing with the sine functional equation, the d'Alem