Results 61 to 70 of about 4,899 (213)

Endomorphisms of Kleinian groups [PDF]

Geometric and Functional Analysis, 2003
We study the co-hopficity of Kleinian groups.
Delzant, Thomas, Potyagailo, Leonid
openaire   +3 more sources

Modeling (∞,1)$(\infty,1)$‐categories with Segal spaces

Bulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract In this paper, we construct a model structure for (∞,1)$(\infty,1)$‐categories on the category of simplicial spaces, whose fibrant objects are the Segal spaces. In particular, we show that it is Quillen equivalent to the models of (∞,1)$(\infty,1)$‐categories given by complete Segal spaces and Segal categories.
Lyne Moser, Joost Nuiten
wiley   +1 more source

The field of moduli of quaternionic multiplication on abelian varieties

International Journal of Mathematics and Mathematical Sciences, 2004
We consider principally polarized abelian varieties with quaternionic multiplication over number fields and we study the field of moduli of their endomorphisms in relation to the set of rational points on suitable Shimura varieties.
Victor Rotger
doaj   +1 more source

Centralizers in endomorphism rings

Journal of Algebra, 2010
We prove that the centralizer Cen(f) in Hom_R(M,M) of a nilpotent endomorphism f of a finitely generated semisimple left R-module M (over an arbitrary ring R) is the homomorphic image of the opposite of a certain Z(R)-subalgebra of the full m x m matrix algebra M_m(R[z]), where m is the dimension (composition length) of ker(f).
Drensky, Vesselin, Szigeti, Jenő, van Wyk, Leon   +2 more
openaire   +3 more sources

Module structure of Weyl algebras

Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract The seminal paper (Stafford, J. Lond. Math. Soc. (2) 18 (1978), no. 3, 429–442) was a major step forward in our understanding of Weyl algebras. Beginning with Serre's Theorem on free summands of projective modules and Bass' Stable Range Theorem in commutative algebra, we attempt to trace the origins of this work and explain how it led to ...
Gwyn Bellamy
wiley   +1 more source

Enumerating Problems Concerning Endomorphisms of Double Vertex Wheel Graphs

Journal of Mathematics
We can define six classes of endomorphisms on a graph, and they always form a chain based on set inclusion. The concepts of endomorphism type and endomorphism spectrum were introduced by Böttcher and Knauer in 1992.
Yu Li, Hailong Hou, Kaidi Xu
doaj   +1 more source

From pathological to paradigmatic: A retrospective on Eremenko and Lyubich's entire functions

Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract This paper surveys the impact of Eremenko and Lyubich's paper “Examples of entire functions with pathological dynamics”, published in 1987 in the Journal of the London Mathematical Society. Through a clever extension and use of classical approximation theorems, the authors constructed examples exhibiting behaviours previously unseen in ...
Núria Fagella, Leticia Pardo‐Simón
wiley   +1 more source

A new approach to (dual) Rickart modules via isomorphisms

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In the past few decades, researchers have found that studying modules using endomorphisms is a powerful and useful tool. This has led to valuable works in this field.
Asgari S., Talebi Y., Moniri Hamzekolaee A. R.   +2 more
doaj   +1 more source

Modules with commutative endomorphism rings [PDF]

, 2023
Sayed Malek Javdannezhad
openalex   +1 more source

Combination theorems for Wise's power alternative

Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract We show that Wise's power alternative is stable under certain group constructions, use this to prove the power alternative for new classes of groups and recover known results from a unified perspective. For groups acting on trees, we introduce a dynamical condition that allows us to deduce the power alternative for the group from the power ...
Mark Hagen, Alexandre Martin, Giovanni Sartori   +2 more
wiley   +1 more source