Results 51 to 60 of about 487 (185)

Infinity‐operadic foundations for embedding calculus

Journal of Topology, Volume 19, Issue 2, June 2026.
Abstract Motivated by applications to spaces of embeddings and automorphisms of manifolds, we consider a tower of ∞$\infty$‐categories of truncated right modules over a unital ∞$\infty$‐operad O$\mathcal {O}$. We study monoidality and naturality properties of this tower, identify its layers, describe the difference between the towers as O$\mathcal {O}$
Manuel Krannich, Alexander Kupers
wiley   +1 more source

Computing supersingular endomorphism rings using inseparable endomorphisms

Journal of Algebra
We give an algorithm for computing an inseparable endomorphism of a supersingular elliptic curve $E$ defined over $\mathbb F_{p^2}$, which, conditional on GRH, runs in expected $O(p^{1/2}(\log p)^2(\log\log p)^3)$ bit operations and requires $O((\log p)^2)$ storage.
Fuselier, Jenny, Iezzi, Annamaria, Kozek, Mark, Morrison, Travis, Namoijam, Changningphaabi   +4 more
openaire   +6 more sources

Combinatorial zeta functions counting triangles

Journal of Topology, Volume 19, Issue 2, June 2026.
Abstract In this paper, we compute special values of certain combinatorial zeta functions counting geodesic paths in the (n−1)$(n-1)$‐skeleton of a triangulation of an n$n$‐dimensional manifold. We show that they carry a topological meaning. As such, we recover the first Betti and L2$L^2$‐Betti numbers of compact manifolds, and the linking number of ...
Leo Benard, Yann Chaubet, Nguyen Viet Dang, Thomas Schick   +3 more
wiley   +1 more source

Thurston norm for coherent right‐angled Artin groups via L2$L^2$‐invariants

Journal of Topology, Volume 19, Issue 2, June 2026.
Abstract We define a new notion of splitting complexity for a group G$G$ along a non‐trivial integral character ϕ∈H1(G;Z)$\phi \in H^1(G; \mathbb {Z})$. If G$G$ is a one‐ended coherent right‐angled Artin group, we show that the splitting complexity along an epimorphism ϕ:G→Z$\phi \colon G \rightarrow \mathbb {Z}$ equals the L2$L^2$‐Euler characteristic
Monika Kudlinska
wiley   +1 more source

STRINGS OF GROUP ENDOMORPHISMS [PDF]

Journal of Algebra and Its Applications, 2010
Recently the strings and the string number of self-maps were used in the computation of the algebraic entropy of specific abelian group endomorphisms. We introduce two special kinds of strings, and their relative string numbers. We show that a dichotomy holds for all these three string numbers; in fact, they admit only zero and infinity as values on ...
DIKRANJAN, Dikran, GIORDANO BRUNO, Anna, Virili, Simone   +2 more
openaire   +3 more sources

Computing the Scale of an Endomorphism of a totally Disconnected Locally Compact Group

Axioms, 2017
The scale of an endomorphism of a totally disconnected, locally compact group G is defined and an example is presented which shows that the scale function is not always continuous with respect to the Braconnier topology on the automorphism group of G ...
George A. Willis
doaj   +1 more source

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

Communications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1151-1298, May 2026.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +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

Convex delay endomorphisms [PDF]

Communications in Mathematical Physics, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rovella, A., Vilamajó, F.
openaire   +2 more sources

Healthy Orthorexia and Orthorexia Nervosa Among Nurses in Qatar

Health Science Reports, Volume 9, Issue 5, May 2026.
ABSTRACT Background The pathological dimension of orthorexia, called orthorexia nervosa (OrNe), includes an obsessive focus on healthy eating with emotional distress. A non‐pathological dimension of orthorexia is healthy orthorexia (HeOr), which is an interest in healthy food and eating behaviors.
Amudha Pattabi, Ananth Nazarene, Abdulqadir Jeprel Japer Nashwan, George Vellaramcheril Joy, Samiya Mohamud Hassan, Haya Ahmed Abdul‐Fattah Samara, Kalpana Singh   +6 more
wiley   +1 more source