Results 121 to 130 of about 153,244 (275)
Factoring Continuous Homomorphisms Defined on Submonoids of Products of Topologized Monoids
Axioms, 2019 We study factorization properties of continuous homomorphisms defined on submonoids of products of topologized monoids. We prove that if S is an ω-retractable submonoid of a product D = ∏ i ∈ I D i of topologized monoids ...
Mikhail Tkachenko
doaj +1 more source
Homomorphisms of connectome graphs [PDF]
arXiv, 2014 We propose to study homomorphisms of connectome graphs. Homomorphisms can be studied as sequences of elementary homomorphisms - folds, which identify pairs of vertices. Several fold types are defined. Initial computation results for some connectome graphs are described.
arxiv
Obstructing Anosov flows on cusped 3‐manifolds
Bulletin of the London Mathematical Society, Volume 57, Issue 5, Page 1584-1592, May 2025.Abstract Using results relating taut foliations, Heegaard–Floer homology and pseudo‐Anosov flows, we find cusped hyperbolic 3‐manifolds which are not the non‐singular part of a pseudo‐Anosov flow. In particular, we find the first examples of cusped hyperbolic 3‐manifolds not admitting veering triangulations, confirming a conjecture of S. Schleimer.
Misha Schmalian
wiley +1 more source
Distributive and Dual Distributive Elements in Hyperlattices
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017 In this paper we introduce and study distributive elements, dual distributive elements in hyperlattices, and prove that these elements forms ∧-semi lattice and ∨-semi hyperlattice, respectively.
Ameri Reza +3 more
doaj +1 more source
Homomorphisms and Structural Properties of Relational Systems [PDF]
arXiv, 2007 Two main topics are considered: The characterisation of finite homomorphism dualities for relational structures, and the splitting property of maximal antichains in the homomorphism order.
arxiv
Minimum Cost Homomorphisms to Locally Semicomplete and Quasi-Transitive Digraphs
, 2007 For digraphs $G$ and $H$, a homomorphism of $G$ to $H$ is a mapping $f:\ V(G)\dom V(H)$ such that $uv\in A(G)$ implies $f(u)f(v)\in A(H)$. If, moreover, each vertex $u \in V(G)$ is associated with costs $c_i(u), i \in V(H)$, then the cost of a ...
Gupta, A. +4 more
core +2 more sources
The Kreuzer bi-homomorphism [PDF]
, 2012 This is a brief review of simple current techniques and their application to string theory constructions, centered around Max Kreuzer's contribution to this ...
openaire +3 more sources
Journal of the London Mathematical Society, Volume 111, Issue 5, May 2025.Abstract In this paper, we extend the theory of minimal limit key polynomials of valuations on the polynomial ring K[x]$K[x]$. Minimal key polynomials are useful to describe, for instance, the defect of an extension of valued fields. We use the theory of cuts on ordered abelian groups to show that the previous results on bounded sets of key polynomials
Enric Nart, Josnei Novacoski
wiley +1 more source
Semigroup homomorphisms on matrix algebras [PDF]
arXiv, 2017 We explore the connection between ring homomorphisms and semigroup homomorphisms on matrix algebras over rings or $C^*$-algebras.
arxiv
Homomorphisms of multiplicative groups of fields preserving algebraic dependence [PDF]
arXiv, 2017 We study homomorphisms of multiplicative groups of fields preserving algebraic dependence and show that such homomorphisms give rise to valuations.
arxiv