Title of article :
STABILITY OF THE LOBACEVSKI EQUATION
Author/Authors :
KIM ، GWANG HUI - Kangnam University
Abstract :
The aim of this paper is to investigate the superstability of the Lobacevski equation f(x+y/2)² =f(x)f(y), which is bounded by the unknown functions φ(x) or φ(y) . The obtained result is a generalization of P. G·avruta s result in 1994.
Keywords :
Hyers , Ulam , Rassias stability , superstability , Lobacevski equation , d Alembert functional equation , sine functional equation
Journal title :
Journal of Nonlinear Science and Applications
Journal title :
Journal of Nonlinear Science and Applications
