Ultradifferentiable classes constitute a refined hierarchy of function spaces that exceed the smoothness of conventional C∞ functions by imposing stringent constraints on the growth of their ...
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 ...
The paper deals with the computation of functions of fractional powers of differential operators. The spectral properties of these operators naturally suggest the use of rational approximations. In ...
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