Results 81 to 90 of about 1,276,458 (233)

Intersection Numbers of the Natural Embedding of the Twisted Triality Hexagon T ( q 3 , q ) in PG ( 7 , q 3 )

open access: yesJournal of Combinatorial Designs, Volume 34, Issue 7, Page 306-329, July 2026.
ABSTRACT In this paper, we study and characterise the natural embedding of the twisted triality hexagon T ( q 3 , q ) in PG ( 7 , q 3 ). We begin by describing the possible intersections of subspaces of PG ( 7 , q 3 ) with T ( q 3 , q ). Then, we provide conditions on a set of lines ℒ, which ensure that ℒ forms the line set of a naturally embedded ...
Sebastian Petit, Geertrui Van de Voorde
wiley   +1 more source

Galois extensions induced by a central idempotent in a partial Galois extension

open access: yesInternational Journal of Algebra, 2014
Let (R,α) be a partial Galois extension of RαG with a partial action of a finite group G, e a non-zero central idempotent in R, 1g the central idempotent associated with g ∈ G, and E = e(Πg∈G1g) 6= 0 with a maximal number of factors 1g for g ∈ G. A sufficient condition for a Galois extension Re with Galois group H(e) and for a Galois extension RE with ...
Xiao-Long Jiang, George Szeto
openaire   +1 more source

On the fixed‐point proportion of self‐similar groups

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 7, July 2026.
Abstract We prove that super strongly fractal groups acting on regular rooted trees have null fixed‐point proportion. In particular, we show that the fixed‐point proportion of an infinite family of iterated monodromy groups of exceptional complex polynomials has the same property.
Jorge Fariña‐Asategui, Santiago Radi
wiley   +1 more source

Virginia Cooperative Extension Volunteer Screening Guidelines

open access: yes, 2020
Frequently asked questions for Virginia Cooperative Extension volunteers.

core  

On generalized quaternion algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
Let B be a commutative ring with 1, and G(={σ}) an automorphism group of B of order 2. The generalized quaternion ring extension B[j] over B is defined by S. Parimala and R.
George Szeto
doaj   +1 more source

New extension specialist training program training manual

open access: yes, 2002
The purpose of the New Extension Specialist Training Program is to provide opportunities for newly employed specialist faculty to receive unit based, hands-on orientation and training in preparation for assuming assigned roles in their department.
Gibson, Jerry D., Nunley, Betty
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Commuting Hopf-Galois structures on a separable extension [PDF]

open access: yes, 2018
Let L/K be a finite separable extension of local or global fields in any characteristic, let H-1, H-2 be two Hopf algebras giving Hopf-Galois structures on the extension, and suppose that the actions of H-1, H-2 on L commute.
Truman
core   +1 more source

Twistings and Hopf Galois Extensions

open access: yesJournal of Algebra, 2000
Let \(H\) be a Hopf algebra with bijective antipode over a commutative ring \(R\), let \(A\) be a right \(H\)-comodule algebra, and let \(B\) be the subalgebra of \(H\)-coinvariant elements of \(A\). A mapping \(\tau\) of \(H\otimes A\) into \(A\) may be used to define a new multiplication on the \(H\)-comodule \(A\) by the rule: \(a*a'=\sum a_0\tau ...
Beattie, Margaret, Torrecillas, Blas
openaire   +1 more source

Global Solvably Closed Anabelian Geometry [PDF]

open access: yes, 2006
In this paper, we study the pro-Σ anabelian geometry of hyperbolic curves, where Σ is a nonempty set of prime numbers, over Galois groups of “solvably closed extensions” of number fields — i.e., infinite extensions of number fields which have ...
Mochizuki, Shinichi
core   +1 more source

Topological visual localization using decentralized galois lattices [PDF]

open access: yes, 2004
This paper presents a new decentralized method for selecting visual landmarks in a structured environment. Different images, issued from the different places, are analyzed, and primitives are extracted to determine whether or not features are present in
Samuelides, Manuel   +2 more
core  

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