Results 31 to 40 of about 349 (184)

Endomorphisms of Implication Algebras

open access: yesDemonstratio Mathematica, 2014
In this note we prove that if two implication algebras have isomorphic monoids of endomorphisms then they are isomorphic.
Gaitán H.
doaj   +1 more source

On the automorphisms of the power semigroups of a numerical semigroup

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract If H$H$ is a numerical semigroup (i.e., a cofinite subset of the non‐negative integers closed under addition), then the collection of all non‐empty subsets of H$H$ forms a semigroup P(H)$\mathcal {P}(H)$ under the sumset operation induced by addition in H$H$.
Salvatore Tringali, Kerou Wen
wiley   +1 more source

An inequality on polarized endomorphisms

open access: yesArchiv der Mathematik, 2022
AbstractWe show that assuming the standard conjectures, for any smooth projective varietyXof dimensionnover an algebraically closed field, there is a constant$$c>0$$c>0such that for any positive rational numberrand any polarized endomorphismfofX, we have$$\begin{aligned} \Vert G_r \circ f \Vert \le c \deg (G_r \circ f), \end{aligned}$$‖Gr∘f‖≤cdeg(
Fei Hu, Tuyen Trung Truong
openaire   +3 more sources

Fractal completeness and compactness in first-order model theory

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
This article develops a formal framework for fractal structures within classical first-order model theory. The notion of fractality is reformulated in purely logical terms by replacing metric self-similarity with logical self-similarity induced by ...
A.R. Yeshkeyev   +3 more
doaj   +1 more source

Topologically mixing extensions of endomorphisms on Polish groups

open access: yesApplied General Topology, 2022
In this paper we study the dynamics of continuous endomorphisms on Polish groups. We offer necessary and sufficient conditions for a continuous endomorphism on a Polish group to be weakly mixing.
John Burke, Leonardo Pinheiro
doaj   +1 more source

Kuga–Satake Construction on Families of K3 Surfaces of Picard Rank 14

open access: yesMathematische Nachrichten, Volume 299, Issue 8, Page 1894-1916, August 2026.
ABSTRACT The isometry between the type IV6 and the type II4 hermitian symmetric domains suggests a possible relation between suitable moduli spaces of K3 surfaces of Picard rank 14 and of polarized abelian 8‐folds with totally definite quaternion multiplication. We show how this isometry induces a geometrically meaningful map between such moduli spaces
Flora Poon
wiley   +1 more source

Uniform distribution in the n-dimensional torus

open access: yesLietuvos Matematikos Rinkinys, 2010
Limit distribution of endomorphisms of the n-dimensional torus is examined. The obtained result generalizes earlier results of the authors.
Gintautas Misevičius   +1 more
doaj   +1 more source

Intrinsic Shape LDA With Application to Body Human Shapes Classification

open access: yesStatistical Analysis and Data Mining: An ASA Data Science Journal, Volume 19, Issue 4, August 2026.
ABSTRACT Advancements in 3D scanning and cloud infrastructure enable the acquisition and analysis of high‐density body surface datasets. In this work, we propose a novel methodology that extends linear discriminant analysis (LDA) to Kendall's shape space for the classification of 3D objects, specifically human body shapes.
Jorge Valero   +3 more
wiley   +1 more source

A birational description of the minimal exponent

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 2, August 2026.
Abstract We give a description of the minimal exponent of a hypersurface using higher direct images of suitably twisted sheaves of log forms on a log resolution.
Qianyu Chen, Mircea Mustaţă
wiley   +1 more source

Eventually Periodic Points of Infra-Nil Endomorphisms

open access: yesFixed Point Theory and Applications, 2010
Hyperbolic toral automorphisms provide important examples of chaotic dynamical systems. Generalizing automorphisms on tori, we study (infra-)nil endomorphisms defined on (infra-)nilmanifolds.
Ha KuYong, Kim HyunJung, Lee JongBum
doaj   +2 more sources

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