12 citations · 16 across the 8 of their papers we have counts for
10 papers
Overconvergent prismatic cohomology
Andreas Langer
In this note I define an overconvergent version of prisms and prismatic cohomology as introduced by Bhatt and Scholze and show that overconvergent prismatic cohomology specialises…
A General Decomposition Method for a Convex Problem Related to Total Variation Minimization
Stephan Hilb, Andreas Langer
We consider sequential and parallel decomposition methods for a dual problem of a general total variation minimization problem with applications in several image processing tasks,…
A log-motivic cohomology for semistable varieties and its -adic deformation theory
Oliver Gregory, Andreas Langer
We construct log-motivic cohomology groups for semistable varieties and study the -adic deformation theory of log-motivic cohomology classes. Our main result is the deformationa…
Hodge-Witt decomposition of relative crystalline cohomology
Oliver Gregory, Andreas Langer
For a smooth and proper scheme over an artinian local ring with ordinary reduction over the perfect residue field we prove - under some general assumptions - that the relative de R…
Overconvergent de Rham-Witt cohomology for semistable varieties
Oliver Gregory, Andreas Langer
We define an overconvergent version of the Hyodo-Kato complex for semistable varieties over perfect fields of positive characteristic, and prove that its hypercohomology tensor…
Higher displays arising from filtered de Rham-Witt complexes
Oliver Gregory, Andreas Langer
For a smooth projective scheme over a ring on which is nilpotent that meets some general assumptions we prove that the crystalline cohomology is equipped with the struc…
Automated Parameter Selection for Total Variation Minimization in Image Restoration
Andreas Langer
Algorithms for automatically selecting a scalar or locally varying regularization parameter for total variation models with an -data fidelity term, , are present…
Overconvergent Witt Vectors
Christopher Davis, Andreas Langer, Thomas Zink
Let A be a finitely generated algebra over a field K of characteristic p >0. We introduce a subring of the ring of Witt vectors W(A). We call it the ring of overconvergent Witt vec…
A Convergent Overlapping Domain Decomposition Method for Total Variation Minimization
Massimo Fornasier, Andreas Langer, Carola-Bibiane Schönlieb
This paper is concerned with the analysis of convergent sequential and parallel overlapping domain decomposition methods for the minimization of functionals formed by a discrepancy…
Domain decomposition methods for compressed sensing
Massimo Fornasier, Andreas Langer, Carola-Bibiane Schönlieb
We present several domain decomposition algorithms for sequential and parallel minimization of functionals formed by a discrepancy term with respect to data and total variation con…