On the Generalized Ulam-Gavruta-Rassias Stability of Mixed-Type Linear and Euler-Lagrange-Rassias Functional Equations

@article{Nakmahachalasint2007OnTG,
  title={On the Generalized Ulam-Gavruta-Rassias Stability of Mixed-Type Linear and Euler-Lagrange-Rassias Functional Equations},
  author={P. Nakmahachalasint},
  journal={Int. J. Math. Math. Sci.},
  year={2007},
  volume={2007},
  pages={63239:1-63239:10}
}
In this paper, the mixed-type linear and Euler-Lagrange-Rassias functional equations introduced by J. M. Rassias is generalized to the following n-dimensional functional equation: f(∑i=1nxi) 
On the Ulam stability of an n-dimensional quadratic functional equation
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