@article{Park_2011, title={SQUARE ROOT AND 3RD ROOT FUNCTIONAL EQUATIONS IN C^*-ALGEBRAS:}, volume={2}, url={http://www.math.sci.nu.ac.th/ojs302/index.php/jnao/article/view/26}, abstractNote={<p>In this paper, we introduce a square root functional equation anda 3rd root functional equation. Using fixed point methods, we prove the Hyers-Ulam stability of the square root functional equation and of the 3rd root functional equation in Coalgebras.</p>}, number={1}, journal={Journal of Nonlinear Analysis and Optimization: Theory & Applications}, author={Park, C.}, year={2011}, month={Dec.}, pages={27-34} }