R. Meise et al., CONTINUOUS LINEAR RIGHT INVERSES FOR PARTIAL-DIFFERENTIAL OPERATORS ON NON-QUASIANALYTIC CLASSES AND ON ULTRADISTRIBUTIONS, Mathematische Nachrichten, 180, 1996, pp. 213-242
Characterizations are given of those linear partial differential opera
tors with constant coefficients which admit a continuous linear right
inverse on epsilon((omega))(Omega) (resp. epsilon({omega})(Omega)) and
/or D'((omega))(Omega) (resp. D'({omega})(Omega)), where Omega is an o
pen set in R(n). The characterizations are in the same spirit as in th
e previous results of the authors on the existence of right inverses o
n C-infinity(Omega) and/or D'(Omega).