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On the stability of orthogonally Jensen additive and quadratic functional equation. (arXiv:2203.03632v1 [math.FA]) http://arxiv.org/abs/2203.03632
On the stability of orthogonally Jensen additive and quadratic functional equation. (arXiv:2203.03632v1 [math.FA]) http://arxiv.org/abs/2203.03632