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Non-preservation of $\alpha$-concavity for the porous medium equation. (arXiv:2011.03063v1 [math.AP]) http://arxiv.org/abs/2011.03063
Non-preservation of $\alpha$-concavity for the porous medium equation. (arXiv:2011.03063v1 [math.AP]) http://arxiv.org/abs/2011.03063