Results 31 to 40 of about 145 (141)

Entropy rigidity for cusped Hitchin representations

Journal of Topology, Volume 19, Issue 1, March 2026.
Abstract We establish an entropy rigidity theorem for Hitchin representations of geometrically finite Fuchsian groups which generalizes a theorem of Potrie and Sambarino for Hitchin representations of closed surface groups. In the process, we introduce the class of (1,1,2)‐hypertransverse groups and show for such a group that the Hausdorff dimension of
Richard Canary, Tengren Zhang, Andrew Zimmer   +2 more
wiley   +1 more source

The DNA of Calabi–Yau Hypersurfaces

Fortschritte der Physik, Volume 74, Issue 2, February 2026.
Abstract Genetic Algorithms are implemented for triangulations of four‐dimensional reflexive polytopes, which induce Calabi–Yau threefold hypersurfaces via Batyrev's construction. These algorithms are shown to efficiently optimize physical observables such as axion decay constants or axion–photon couplings in string theory compactifications.
Nate MacFadden, Andreas Schachner, Elijah Sheridan   +2 more
wiley   +1 more source

Constituent Automorphism Decoding of Reed-Muller Codes

IEEE Transactions on Communications
11 pages, 8 figures, 5 ...
Yicheng Qu, Amir Tasbihi, Frank R. Kschischang   +2 more
openaire   +2 more sources

Generalized Automorphisms of Channel Codes: Properties, Code Design, and a Decoder

2023 12th International Symposium on Topics in Coding (ISTC), 2023
Low-density parity-check codes together with belief propagation (BP) decoding are known to be well-performing for large block lengths. However, for short block lengths there is still a considerable gap between the performance of the BP decoder and the maximum likelihood decoder.
Mandelbaum, Jonathan, Jäkel, Holger, Schmalen, Laurent   +2 more
openaire   +3 more sources

A general approach to the linear stability of viscoelastic shear‐flows

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 2, February 2026.
Abstract The present work provides an in‐depth analysis of the linear stability theory of viscoelastic shear‐flows, based upon a constitutive equation of the fading memory type. The particular model considered herein was introduced by Kenneth Walters through the integration of classical rate‐type fluids in a convected frame (Walters 1962).
Johannes Conrad, Martin Oberlack
wiley   +1 more source

Error-correcting codes for fermionic quantum simulation

SciPost Physics
Utilizing the framework of $\mathbb{Z}_2$ lattice gauge theories in the context of Pauli stabilizer codes, we present methodologies for simulating fermions via qubit systems on a two-dimensional square lattice. We investigate the symplectic automorphisms
Yu-An Chen, Alexey V. Gorshkov, Yijia Xu
doaj   +1 more source

On automorphisms of generalized algebraic-geometry codes

Journal of Pure and Applied Algebra, 2007
In coding theory, one often is interested in codes admitting large automorphism group. Certainly, the knowledge of the automorphism group of a code or even of part of this group gives information about the structure of the code and can allow to developing a decoding algorithm. In [IEEE Trans. Inform. Theory 45, No. 7, 2498--2501 (1999; Zbl 0956.94023)]
openaire   +2 more sources

The cosymplectic Chern–Hamilton conjecture

Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract In this paper, we study the Chern–Hamilton energy functional on compact cosymplectic manifolds, fully classifying in dimension 3 those manifolds admitting a critical compatible metric for this functional. This is the case if and only if either the manifold is co‐Kähler or if it is a mapping torus of the 2‐torus by a hyperbolic toral ...
Søren Dyhr, Ángel González‐Prieto, Eva Miranda, Daniel Peralta‐Salas   +3 more
wiley   +1 more source

Successive Cancellation Automorphism List Decoding of Polar Codes

2023 12th International Symposium on Topics in Coding (ISTC), 2023
The discovery of suitable automorphisms of polar codes gained a lot of attention by applying them in Automorphism Ensemble Decoding (AED) to improve the error-correction performance, especially for short block lengths. This paper introduces Successive Cancellation Automorphism List (SCAL) decoding of polar codes as a novel application of automorphisms ...
Johannsen, Lucas, Kestel, Claus, Geiselhart, Marvin, Vogt, Timo, Brink, Stephan ten, Wehn, Norbert   +5 more
openaire   +2 more sources

Derangements in intransitive groups

Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract Let G$G$ be a nontrivial permutation group of degree n$n$. If G$G$ is transitive, then a theorem of Jordan states that G$G$ has a derangement. Equivalently, a finite group is never the union of conjugates of a proper subgroup. If G$G$ is intransitive, then G$G$ may fail to have a derangement, and this can happen even if G$G$ has only two ...
David Ellis, Scott Harper
wiley   +1 more source