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03/20/2022
Approximation and Interpolation of Singular Measures by Trigonometric Polynomials
Complex signed measures of finite total variation are a powerful signal ...
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08/26/2021
Sparse super resolution is Lipschitz continuous
Motivated by the application of neural networks in super resolution micr...
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03/15/2021
Multivariate Vandermonde matrices with separated nodes on the unit circle are stable
We prove explicit lower bounds for the smallest singular value and upper...
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07/16/2019
On the smallest singular value of multivariate Vandermonde matrices with clustered nodes
We prove lower bounds for the smallest singular value of rectangular, mu...
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07/02/2019