%0 Journal Article %A Ali Sili %T On the limit spectrum of a degenerate operator in the framework of periodic homogenization or singular perturbation problems %J Comptes Rendus. Mathématique %D 2022 %P 1-23 %V 360 %I Académie des sciences, Paris %R 10.5802/crmath.263 %G en %F CRMATH_2022__360_G1_1_0