Is quasi-concavity preserved by heat flow?
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- Ishige, K. & Salani, P. Arch. Math. (2008) 90: 450. doi:10.1007/s00013-008-2437-y
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We investigate on the preservation of spatial quasi-concavity of the initial datum by the solutions of the heat equation and we give negative results in dimension N ≥ 2.