The aim of this paper is to investigate the solution and the superstability of the Pexiderized Lobacevski equation , where , , are unknown functions on an Abelian semigroup . The obtained result is a generalization of Gavruta's result in 1994 and Kim's result in 2010.
J. Appl. Math.
2011:
1-10
(2011).
DOI: 10.1155/2011/540274