Der-Chen Chang

activity

20232026

collaborators

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math.CA2026

Non-radial Dunkl multipliers at the $L^{2}$ -Sobolev threshold

Der-Chen Chang, Ji Li, Chaojie Wen +1

We prove a Hörmander multiplier theorem for the Dunkl transform associated with an arbitrary finite reflection group. Uniform $H^{σ} (R^{N})$ bounds for the normalised dyadic p…

math.CA2026

Chamber lifting and non-radial Dunkl multipliers

Der-Chen Chang, Ji Li, Chaojie Wen +1

We study non-radial Dunkl multipliers via chamber lifting. For an arbitrary finite reflection group $G$ , the chamber lifting records all reflected values of a function and conjugat…

Non-radial Dunkl multipliers at the L2-Sobolev threshold

Chamber lifting and non-radial Dunkl multipliers

Non-radial Dunkl multipliers at the $L^{2}$ -Sobolev threshold