Results 11 to 20 of about 44,019 (185)

Orienteering with One Endomorphism. [PDF]

open access: yesMathematica (N Y), 2023
AbstractIn supersingular isogeny-based cryptography, the path-finding problem reduces to the endomorphism ring problem. Can path-finding be reduced to knowing just one endomorphism? It is known that a small degree endomorphism enables polynomial-time path-finding and endomorphism ring computation (in: Love and Boneh, ANTS XIV-Proceedings of the ...
Arpin S   +5 more
europepmc   +4 more sources

Yang–Baxter endomorphisms [PDF]

open access: yesJournal of the London Mathematical Society, 2020
Every unitary solution of the Yang-Baxter equation (R-matrix) in dimension $d$ can be viewed as a unitary element of the Cuntz algebra ${\mathcal O}_d$ and as such defines an endomorphism of ${\mathcal O}_d$. These Yang-Baxter endomorphisms restrict and extend to endomorphisms of several other $C^*$- and von Neumann algebras and furthermore define a II$
Conti R., Lechner G.
openaire   +5 more sources

Convex delay endomorphisms [PDF]

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

On determinability of idempotent medial commutative quasigroups by their endomorphism semigroups; pp. 81–87 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2011
We extend the result of P. Puusemp (Idempotents of the endomorphism semigroups of groups. Acta Comment. Univ. Tartuensis, 1975, 366, 76–104) about determinability of finite Abelian groups by their endomorphism semigroups to finite idempotent medial ...
Alar Leibak, Peeter Puusemp
doaj   +1 more source

Analysis of endomorphisms [PDF]

open access: yesJournal of Physics: Conference Series, 2012
In this expository article, we discuss the recent progress in the study of endomorphisms and automorphisms of the Cuntz algebras and, more generally graph C* -algebras (or Cuntz-Krieger algebras). In particular, we discuss the definition and properties of both the full and the restricted Weyl group of such an algebra.
CONTI, ROBERTO   +2 more
openaire   +3 more sources

A Variant of D’Alembert’s Functional Equation on Semigroups with Endomorphisms

open access: yesAnnales Mathematicae Silesianae, 2022
Let S be a semigroup, and let φ, ψ: S → S be two endomorphisms (which are not necessarily involutive). Our main goal in this paper is to solve the following generalized variant of d’Alembert’s functional equation f(xϕ(y))+f(ψ(y)x)=2f(x)f(y),      x,y ∈ S,
Akkaoui Ahmed   +2 more
doaj   +1 more source

Mass endomorphism, surgery and perturbations [PDF]

open access: yes, 2014
We prove that the mass endomorphism associated to the Dirac operator on a Riemannian manifold is non-zero for generic Riemannian metrics. The proof involves a study of the mass endomorphism under surgery, its behavior near metrics with harmonic spinors ...
Ammann, Bernd   +3 more
core   +6 more sources

Minkowski Endomorphisms [PDF]

open access: yesGeometric and Functional Analysis, 2017
Several open problems concerning Minkowski endomorphisms and Minkowski valuations are solved. More precisely, it is proved that all Minkowski endomorphisms are uniformly continuous but that there exist Minkowski endomorphisms that are not weakly-monotone. This answers questions posed repeatedly by various authors.
openaire   +4 more sources

The Baer–Kaplansky Theorem for all abelian groups and modules

open access: yesBulletin of Mathematical Sciences, 2022
It is shown that the Baer–Kaplansky Theorem can be extended to all abelian groups provided that the rings of endomorphisms of groups are replaced by trusses of endomorphisms of corresponding heaps.
Simion Breaz, Tomasz Brzeziński
doaj   +1 more source

Building blocks of amplified endomorphisms of normal projective varieties [PDF]

open access: yes, 2020
Let $X$ be a normal projective variety. A surjective endomorphism $f:X\to X$ is int-amplified if $f^\ast L - L =H$ for some ample Cartier divisors $L$ and $H$. This is a generalization of the so-called polarized endomorphism which requires that $f^*H\sim
Meng, S.
core   +2 more sources

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