Results 31 to 40 of about 2,776 (226)

Pentagonal quasigroups, their translatability and parastrophes

open access: yesOpen Mathematics, 2021
Any pentagonal quasigroup QQ is proved to have the product xy=φ(x)+y−φ(y)xy=\varphi \left(x)+y-\varphi (y), where (Q,+)\left(Q,+) is an Abelian group, φ\varphi is its regular automorphism satisfying φ4−φ3+φ2−φ+ε=0{\varphi }^{4}-{\varphi }^{3}+{\varphi }^
Dudek Wieslaw A., Monzo Robert A. R.
doaj   +1 more source

A beginner's guide to non-abelian iPEPS for correlated fermions

open access: yesSciPost Physics Lecture Notes, 2021
Infinite projected entangled pair states (iPEPS) have emerged as a powerful tool for studying interacting two-dimensional fermionic systems. In this review, we discuss the iPEPS construction and some basic properties of this tensor network (TN) ansatz.
Benedikt Bruognolo, Jheng-Wei Li, Jan von Delft, Andreas Weichselbaum
doaj   +1 more source

Every positive integer is the order of an ordinary abelian variety over F2 [PDF]

open access: yes, 2021
: We show that for every integer$$m > 0$$m>0, there is an ordinary abelian variety over $${{\mathbb {F}}}_2$$F2that has exactlymrational ...
Kedlaya, Kiran S, Howe, Everett W
core   +1 more source

UNLIKELY INTERSECTIONS IN FINITE CHARACTERISTIC

open access: yesForum of Mathematics, Sigma, 2018
We present a heuristic argument based on Honda–Tate theory against many conjectures in ‘unlikely intersections’ over the algebraic closure of a finite field; notably, we conjecture that every abelian variety of dimension 4 is isogenous to a Jacobian ...
ANANTH N. SHANKAR, JACOB TSIMERMAN
doaj   +1 more source

Strong amalgamations of lattice ordered groups and modules

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
We show that every variety of representable lattice ordered groups fails the strong amalgamation property. The same result holds for the variety of f-modules over an f-ring.
Mona Cherri, Wayne B. Powell
doaj   +1 more source

Flat principal bundles over an abelian variety [PDF]

open access: yes, 2004
We prove that a principal G-bundle EG over a complex abelian variety A, where G is a complex reductive algebraic group, admits a flat holomorphic connection if and only if EG is isomorphic to all the translations of it by the group structure of ...
Biswas, Indranil
core   +1 more source

Radiative bound-state formation in unbroken perturbative non-Abelian theories and implications for dark matter

open access: yesJournal of High Energy Physics, 2018
We compute the cross-sections for the radiative capture of non-relativistic particles into bound states, in unbroken perturbative non-Abelian theories.
Julia Harz, Kalliopi Petraki
doaj   +1 more source

Dieudonné theory via cohomology of classifying stacks

open access: yesForum of Mathematics, Sigma, 2021
We prove that if G is a finite flat group scheme of p-power rank over a perfect field of characteristic p, then the second crystalline cohomology of its classifying stack $H^2_{\text {crys}}(BG)$ recovers the Dieudonné module of G.
Shubhodip Mondal
doaj   +1 more source

The Hodge group of an abelian variety [PDF]

open access: yes, 1988
Let A A be a simple abelian variety of odd dimension, defined over C {\mathbf {C}} . If the Hodge classes on A A are intersections of divisors, then the semisimple part of ...
V. Kumar Murty
core   +1 more source

Splitting of abelian varieties

open access: yesAdvances in Mathematics of Communications, 2014
It is possible that a simple (or absolutely simple) Abelian variety defined over a number field splits modulo every prime of good reduction. This is a new problem that arises in designing crypto systems using Abelian varieties of dimension larger than $1$. We discuss what is behind this phenomenon.
V. Kumar Murty, Ying Zong
openaire   +1 more source

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