Author

Fedor Noskov

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Preprint Aug 2026

Density Estimation on Compact Manifolds under Intrinsic Spectral Block Variation

We introduce an intrinsic spectral sparsity model for nonparametric density estimation on compact connected Riemannian manifolds. Instead of penalizing coefficients in an arbitrarily chosen Laplace--Beltrami eigenbasis, we group each complete eigenspace and measure the Hilbert norm of its spectral component. The result...

Olga Klopp, Fedor Noskov · 0 citations