arXiv subjects

Fulvio Ricci

Publications and source records attributed to Fulvio Ricci.

38 records · Page 3Linked to original sources

arXiv2004

Spectral projections for the twisted Laplacian

The twisted Laplacian in the d=2n dimensional Euclidean space has the spectrum n+2k, k a nonnegative integer. We find sharp asymptotic bounds of the norm of the projection to the eigenspace considered as map from L2 to Lp, for all p>2.

math.AP↗

arXiv1992

A class of nonsymmetric harmonic Riemannian spaces

Certain solvable extensions of $H$-type groups provide noncompact counterexamples to the so-called Lichnerowicz conjecture, which asserted that ``harmonic'' Riemannian spaces must be rank 1 symmetric spaces.

math.DG↗