BookDOI
Numerische Mathematik 1
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The article was published on 1989-01-01. It has received 2186 citations till now.read more
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MR Image Reconstruction Based on Iterative Split Bregman Algorithm and Nonlocal Total Variation
TL;DR: An efficient algorithm for magnetic resonance (MR) image reconstruction that minimizes a linear combination of nonlocal total variation and least-square data-fitting term to reconstruct the MR images from undersampled k-space data is introduced.
Journal ArticleDOI
Default Risk, Asset Pricing, and Debt Control
Lars Grüne,Willi Semmler +1 more
TL;DR: In this article, the authors explore the interdependence of debt finance and asset pricing of firms and endogenize default premia and borrowing constraints in a production-based asset pricing model.
Journal ArticleDOI
Compression of boundary element matrix in micromagnetic simulations
Andreas Knittel,Matteo Franchin,G. Bordignon,Thomas Fischbacher,Simon J. Bending,Hans Fangohr +5 more
TL;DR: A study of the efficiency of algorithms implemented in HLIB concerning the storage requirements and the matrix assembly time in micromagnetic simulations of the hybrid FEM/BEM.
Journal ArticleDOI
Photosynthesis can be enhanced by lateral CO2 diffusion inside leaves over distances of several millimeters.
Roland Pieruschka,Roland Pieruschka,Andrés Chavarría-Krauser,Andrés Chavarría-Krauser,Kathrin Cloos,Hanno Scharr,Ulrich Schurr,Siegfried Jahnke,Siegfried Jahnke +8 more
TL;DR: The extent to which lateral gas diffusion can influence intercellular CO(2) concentrations (c(i)) and thus photosynthesis in leaf areas with closed stomata is examined and large support of photosynthesis over submillimeter distances for leaves with low D(C'lat) is indicated.