Results 71 to 80 of about 55,047 (231)

The minimal closed monoids for the Galois connection ${\rm End}$-${\rm Con}$ [PDF]

open access: yesMathematica Bohemica
The minimal nontrivial endomorphism monoids $M={\rm End}{\rm Con} (A,F)$ of congruence lattices of algebras $(A,F)$ defined on a finite set $A$ are described.
Danica Jakubíková-Studenovská   +2 more
doaj   +1 more source

Regularity and Products of Idemopotents in Endmorphism Monoids of Projective Acts [PDF]

open access: yes, 1995
That the monoid of all transformations of any set and the monoid of all endomorphisms of any vector space over a division ring are regular (in the sense of von Neumann) has been known for many years (see [6] and [16], respectively).
Bulman-Fleming, Sydney
core   +1 more source

Robust Transitivity for Endomorphisms

open access: yes, 2012
We address the problem about under what conditions an endomorphism having a dense orbit, verifies that a sufficiently close perturbed map also exhibits a dense orbit. In this direction, we give sufficient conditions, that cover a large class of examples,
Lizana, Cristina, Pujals, Enrique
core   +1 more source

Endomorphism Breaking in Graphs [PDF]

open access: yesElectronic Journal of Combinatorics, 2013
We introduce the endomorphism distinguishing number $D_e(G)$ of a graph $G$ as the least cardinal $d$ such that $G$ has a vertex coloring with $d$ colors that is only preserved by the trivial endomorphism.
W. Imrich   +3 more
semanticscholar   +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

Growth problems in diagram categories

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract In the semisimple case, we derive (asymptotic) formulas for the growth rate of the number of summands in tensor powers of the generating object in diagram/interpolation categories.
Jonathan Gruber, Daniel Tubbenhauer
wiley   +1 more source

Ready-made short basis for GLV+GLS on high degree twisted curves

open access: yesAIMS Mathematics, 2022
The crucial step in elliptic curve scalar multiplication based on scalar decompositions using efficient endomorphisms—such as GLV, GLS or GLV+GLS—is to produce a short basis of a lattice involving the eigenvalues of the endomorphisms, which usually is ...
Bei Wang   +3 more
doaj   +1 more source

A note on the cohomology of moduli spaces of local shtukas

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract We study localized versions of spectral action of Fargues–Scholze, using methods from higher algebra. As our main motivation and application, we deduce a formula for the cohomology of moduli spaces of local shtukas under certain genericity assumptions, and discuss its relation with the Kottwitz conjecture.
David Hansen, Christian Johansson
wiley   +1 more source

New Pexiderizations of Drygas’ Functional Equation on Abelian Semigroups

open access: yesAnnales Mathematicae Silesianae, 2023
Let (S, +) be an abelian semigroup, let (H, +) be an abelian group which is uniquely 2-divisible, and let ϕ be an endomorphism of S. We find the solutions f, h : S → H of each of the functional equations f(x+y)+f(x+ϕ(y))=h(x)+f(y)+f∘ϕ(y), x,y∈S,f(x+y)+f ...
Aissi Youssef, Zeglami Driss
doaj   +1 more source

Cellularity of certain quantum endomorphism algebras [PDF]

open access: yes, 2013
We exhibit for all positive integers r, an explicit cellular structure for the endomorphism algebra of the r'th tensor power of an integral form of the Weyl module with highest weight d of the quantised enveloping algebra of sl2. When q is specialised to
H. H. Andersen, G. Lehrer, R. Zhang
semanticscholar   +1 more source

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