eigenvalue distribution 1harmonic analysis 1local density profile 1shannon number 1spectral projection asymptotics 1spherical fourier-bessel truncation 1
From the 1 of 2 linked papers with an AI index.
2 papers
math.FA2026
Local spectral density and Slepian concentration for spherical Fourier-Bessel truncation spaces
Xinpeng Huang
The paper studies the asymptotic behavior of diagonal kernels and eigenvalue concentrations for spherical Fourier‑Bessel truncation spaces, deriving a local density profile and a S…
math.FA2026
Spatiospectral localization within the ball -- studies on the influence of the spectral shape
Christian Gerhards, Xinpeng Huang
We investigate the Slepian spatiospectral localization problem within subdomains of the -dimensional ball. Opposed to the more classical setups of the Euclidean space or the sph…