Results 51 to 60 of about 54,181 (174)

Approximation of Dirac operators with δ‐shell potentials in the norm resolvent sense, II: Quantitative results

Mathematische Nachrichten, Volume 299, Issue 4, Page 704-763, April 2026.
Abstract This paper is devoted to the approximation of two‐ and three‐dimensional Dirac operators HV∼δΣ$H_{\widetilde{V} \delta _\Sigma }$ with combinations of electrostatic and Lorentz scalar δ$\delta$‐shell interactions in the norm resolvent sense. Relying on results from Behrndt, Holzmann, and Stelzer‐Landauer [Math. Nachr.
Jussi Behrndt, Markus Holzmann, Christian Stelzer‐Landauer   +2 more
wiley   +1 more source

Finite-size effects in molecular simulations: a physico-mathematical view

Advances in Physics: X
Molecular simulation of condensed matter systems has always been characterized by the aim for an optimal balance between a precise physical description of the simulated substance, and the efficient use of computational resources.
Benedikt M. Reible, Carsten Hartmann, Luigi Delle Site   +2 more
doaj   +1 more source

Gender differences in the choice of advanced and basic courses in senior high school [PDF]

, 1997
Die vorliegende Untersuchung stützt sich auf Erhebungen der Bundesländer über die Wahlen von Leistungs- und Grundkursen sowie auf Informationen auf einer Schülerbefragung zur Bewertung von Aspekten des Kurssystems, die im Rahmen einer internationalen ...
Gruehn, Sabine, Roeder, Peter M.
core   +1 more source

Duality for Evolutionary Equations With Applications to Null Controllability

Mathematical Methods in the Applied Sciences, Volume 49, Issue 5, Page 4144-4166, 30 March 2026.
ABSTRACT We study evolutionary equations in exponentially weighted L2$$ {\mathrm{L}}^2 $$‐spaces as introduced by Picard in 2009. First, for a given evolutionary equation, we explicitly describe the ν$$ \nu $$‐adjoint system, which turns out to describe a system backwards in time. We prove well‐posedness for the ν$$ \nu $$‐adjoint system. We then apply
Andreas Buchinger, Christian Seifert
wiley   +1 more source

Good reduction of Fano threefolds and sextic surfaces [PDF]

, 2017
We investigate versions of the Shafarevich conjecture, as proved for curves and abelian varieties by Faltings, for other classes of varieties. We first obtain analogues for certain Fano threefolds. We use these results to prove the Shafarevich conjecture
Javanpeykar, Ariyan, Loughran, Daniel
core   +2 more sources

Rational points in a family of conics over F2(t)$\mathbb {F}_2(t)$

Mathematische Nachrichten, Volume 299, Issue 3, Page 496-513, March 2026.
Abstract Serre famously showed that almost all plane conics over Q$\mathbb {Q}$ have no rational point. We investigate versions of this over global function fields, focusing on a specific family of conics over F2(t)$\mathbb {F}_2(t)$ which illustrates new behavior.
Daniel Loughran, Judith Ortmann
wiley   +1 more source

Brick wall diagrams as a completely integrable system

Journal of High Energy Physics
We study the free energy of an integrable, planar, chiral and non-unitary four-dimensional Yukawa theory, the bi-fermion fishnet theory discovered by Pittelli and Preti.
Moritz Kade, Matthias Staudacher
doaj   +1 more source

Refined Stratified Random Field Sampling for Inhomogeneous Turbulence Reconstruction

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 1, March 2026.
ABSTRACT We present a refined stratified sampling method for the numerical simulation of a recently introduced random field model for the reconstruction of inhomogeneous turbulence from characteristic flow quantities. The refinement concerns the generation of random wave vectors and allows for an improved accuracy of the simulated fluctuation field.
Markus Antoni, Quinten Kürpick, Felix Lindner   +2 more
wiley   +1 more source

Denoising Multi‐Color QR Codes and Stiefel‐Valued Data by Relaxed Regularizations

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 1, March 2026.
ABSTRACT The handling of manifold‐valued data, for instance, plays a central role in color restoration tasks relying on circle‐ or sphere‐valued color models, in the study of rotational or directional information related to the special orthogonal group, and in Gaussian image processing, where the pixel statistics are interpreted as values on the ...
Robert Beinert, Jonas Bresch
wiley   +1 more source

Supersymmetric brick wall diagrams and the dynamical fishnet

Journal of High Energy Physics
We consider the double scaling limit of β-deformed planar N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills theory (SYM), which has been argued to be conformal and integrable.
Moritz Kade, Matthias Staudacher
doaj   +1 more source