International Journal of Mathematics and Mathematical Sciences
Volume 2006 (2006), Issue 6, Pages 69368, 12 p.
doi:10.1155/IJMMS/2006/69368

Cauchy's functional equation in restricted complex domains

Watcharapon Pimsert1 , Vichian Laohakosol2 and Sajee Pianskool1

1Department of Mathematics, Chulalongkorn University, Bangkok 10330, Thailand
2Department of Mathematics, Kasetsart University, Bangkok 10900, Thailand

Abstract

Using a method modified from that used by Pisot and Schoenberg in 1964-1965, a Cauchy's functional equation with restricted domains in the complex field is solved for uniformly continuous solutions.