%0 Journal Article %A Yoshitomi, Kazushi %T Fredholmness of pseudo-differential operators with nonregular symbols %J Czechoslovak Mathematical Journal %D 2023 %P 941-954 %V 73 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2023.0387-22/ %R 10.21136/CMJ.2023.0387-22 %G en %F 10_21136_CMJ_2023_0387_22