%0 Journal Article %A Álvarez López, Jesús %A Gilkey, Peter B. %T The local index density of the perturbed de Rham complex %J Czechoslovak Mathematical Journal %D 2021 %P 901-932 %V 71 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2021.0142-20/ %R 10.21136/CMJ.2021.0142-20 %G en %F 10_21136_CMJ_2021_0142_20