Weilin Li

activity

20172023

L^{\infty}

error estimates for super-resolution de-noising

8 citations · 16 across the 5 of their papers we have counts for

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math.NA2023

Multiscale estimates for the condition number of non-harmonic Fourier matrices

Weilin Li

This paper studies the extreme singular values of non-harmonic Fourier matrices. Such a matrix of size $m \times s$ can be written as $Φ=[ e^{-2πi j x_k}]_{j=0,1,\dots,m-1, k=1,2,\d…

math.NA2020

Generalization error of minimum weighted norm and kernel interpolation

Weilin Li

We study the generalization error of functions that interpolate prescribed data points and are selected by minimizing a weighted norm. Under natural and general conditions, we prov…