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math.CA2007
Sharp -estimates for maximal operators associated to hypersurfaces in $\bR^3$ for
Isroil A. Ikromov, Michael Kempe, Detlef Müller
We study the boundedness problem for maximal operators $\M$ associated to smooth hypersurfaces in 3-dimensional Euclidean space. For we prove that if no affine tangent p…
math.CA2007★ 1 cited
On adapted coordinate systems
Isroil A. Ikromov, Detlef Müller
The notion of an adapted coordinate system, introduced by V.I.Arnol'd, plays an important role in the study of asymptotic expansions of oscillatory integrals. In two dimensions, A.…
math.CA2004★ 1 cited
Holomorphic L^p-type for sub-Laplacians on connected Lie groups
Jean Ludwig, Detlef Müller, Sofiane Souaifi
We study the problem of determining all connected Lie groups which have the following property (hlp): every sub-Laplacian on is of holomorphic -type for $1\leq p<\…