We define a Fourier transform and a convolution product for functions and
distributions on Heisenberg--Clifford Lie supergroups. The Fourier transform
exchanges the convolution and a pointwise product, and is an intertwining
operator for the left regular representation. We generalize various classical
theorems, including the Paley--Wiener--Schwartz theorem, and define a
convolution Banach algebra.Comment: 28 page