Advances in Difference Equations
Volume 2008 (2008), Article ID 143053, 5 pages
doi:10.1155/2008/143053
Research Article
Stability of General Newton Functional Equations for Logarithmic Spirals
1Mathematics Section, College of Science and Technology, Hong-Ik University, 339-701 Chochiwon, South Korea
2Mathematics Section, Pedagogical Department EE, National and Capodistrian University of Athens, 4 Agamemnonos Street, Aghia Paraskevi, Athens, 15342 Attikis, Greece
Received 16 October 2007; Revised 8 January 2008; Accepted 25 January 2008
Academic Editor: Ulrich Krause
Copyright © 2008 Soon-Mo Jung and John Michael Rassias. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
We investigate the generalized Hyers-Ulam stability of Newton functional equations for logarithmic spirals.