%0 Journal Article %A Alessandro Iraci %A Marino Romero %T Delta and Theta Operator Expansions %J Forum of Mathematics, Sigma %D 2024 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1017/fms.2024.14/ %R 10.1017/fms.2024.14 %G en %F 10_1017_fms_2024_14