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12/12/2022
Symmetrization Techniques in Image Deblurring
This paper presents a couple of preconditioning techniques that can be u...
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03/11/2022
Symbol based convergence analysis in multigrid methods for saddle point problems
Saddle point problems arise in a variety of applications, e.g., when sol...
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06/28/2021
On the matrices in B-spline collocation methods for Riesz fractional equations and their spectral properties
In this work, we focus on a fractional differential equation in Riesz fo...
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06/19/2021
Graph approximation and generalized Tikhonov regularization for signal deblurring
Given a compact linear operator , the (pseudo) inverse ^† is usually sub...
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02/20/2021
Graph Laplacian for image deblurring
Image deblurring is relevant in many fields of science and engineering. ...
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01/16/2021
A symbol based analysis for multigrid methods for Block-Circulant and Block-Toeplitz Systems
In the literature, there exist several studies on symbol-based multigrid...
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01/02/2021
Compatibility, embedding and regularization of non-local random walks on graphs
Several variants of the graph Laplacian have been introduced to model no...
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10/30/2019