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math.NA2026
Finite-time Cholesky Factorization
Rahul Manavalan, Carola Bibiane Schoenlieb
We propose an algorithm for estimating the Cholesky factorization of positive, semi-definite matrices without pivoting. Our method has the same data access pattern as the canonical…
math.NA2018★ 24 cited
Enhancing joint reconstruction and segmentation with non-convex Bregman iteration
Veronica Corona, Martin Benning, Matthias J. Ehrhardt +6
All imaging modalities such as computed tomography (CT), emission tomography and magnetic resonance imaging (MRI) require a reconstruction approach to produce an image. A common im…