%0 Journal Article %A François Hamel %A Nikolai Nadirashvili %T Log-concavity and anti-maximum principles for semilinear and linear elliptic equations %J Comptes Rendus. Mathématique %D 2025 %P 1555-1574 %V 363 %I Académie des sciences, Paris %R 10.5802/crmath.810 %G en %F CRMATH_2025__363_G13_1555_0