Spherical functions and spectral synthesis
Unbounded Lebesgue Constants on Compact Groups.
A.e. convergence of spectral sums on Lie groups
Let be a right-invariant sub-Laplacian on a connected Lie group and let denote the associated “spherical partial sums,” where is the spectral resolution of We prove that converges a.e. to as under the assumption
An inequality for bi-orthogonal pairs.
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