@article{amp2017533,
author={Cao, Jianbing},
title={Stability of Quadratic Functional Equationin Two Variables},
journal={Applied Mathematics and Physics},
volume={5},
number={3},
pages={95--98},
year={2017},
url={http://pubs.sciepub.com/amp/5/3/3},
issn={2333-4886},
abstract={In this paper, we establish the general solution of a 2-variable quadratic functional equation <i>f</i>(2<i>x</i>+<i>y</i>,2<i>z</i>+<i>w</i>)=<i>f</i>(<i>x</i>+<i>y</i>,z+<i>w</i>)-<i>f</i>(<i>x</i>-<i>y</i>,<i>z</i>-w)+4<i>f</i>(<i>x</i>,<i>z</i>)+<i>f</i>(<i>y</i>,<i>w</i>) and prove the generalized Hyers-Ulam stability of this functional equation.},
doi={10.12691/amp-5-3-3}
publisher={Science and Education Publishing}
}