The study of global solvability and hypoellipticity of differential operators on manifolds has attained increasing prominence over recent decades. At its core, global solvability investigates the ...
The Dunkl transform is a sophisticated generalisation of the classical Fourier transform, incorporating differential‐difference operators that are defined in relation to reflection groups. This ...
Transactions of the American Mathematical Society, Vol. 347, No. 10 (Oct., 1995), pp. 3671-3742 (72 pages) Results in the spectral theory of differential operators, and recent results on conformally ...