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Paper detail

The $λ$-Cosine Transforms, Differential Operators, and Funk Transforms on Stiefel and Grassmann Manifolds

We introduce a new family of invariant differential operators associated with $λ$-cosine and Funk-Radon transforms on Stiefel and Grassmann manifolds. These operators reduce the order of the $λ$-cosine transforms and yield new inversion formulas. Intermediate Funk-cosine transforms corresponding to integration over matrices of lower rank are studied. The main tools are polar decomposition and Fourier analysis on matrix space.

preprint2020arXivOpen access
Boris Rubin
math.FA
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Boris Rubin

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