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math.CA2003★ 6 cited
Sub-Laplacians of holomorphic -type on exponential solvable groups
W. Hebisch, J. Ludwig, D. Mueller
Let denote a right-invariant sub-Laplacian on an exponential, hence solvable Lie group , endowed with a left-invariant Haar measure. Depending on the structure of , and p…
math.CA2003
Solvability of dissipative second order left-invariant differential operators on the Heisenberg group
Detlef Mueller
We prove local solvability for large classes of operators of the form where the are left-invariant vector fields on the Heisenberg g…
math.CA2003
Damped oscillatory integrals and boundedness of maximal operators associated to mixed homogeneous hypersurfaces
I. A. Ikromov, M. Kempe, D. Mueller
We study the boundedness problem for maximal operators in 3-dimensional Euclidean space associated to hypersurfaces given as the graph of , where is a mixed homogeneous fu…