Results 51 to 60 of about 69,880 (174)

A Classification Theorem for Abelian p-Groups [PDF]

open access: yesTransactions of the American Mathematical Society, 1975
A new class of Abelian p p -groups, called S S -groups, is studied, and the groups in this class are classified in terms of cardinal invariants. The class of S S -groups includes Nunke’s totally projective p p -groups.
openaire   +1 more source

Equivariant Kuznetsov components for cubic fourfolds with a symplectic involution

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 2, February 2026.
Abstract We study the equivariant Kuznetsov component KuG(X)$\mathrm{Ku}_G(X)$ of a general cubic fourfold X$X$ with a symplectic involution. We show that KuG(X)$\mathrm{Ku}_G(X)$ is equivalent to the derived category Db(S)$D^b(S)$ of a K3$K3$ surface S$S$, where S$S$ is given as a component of the fixed locus of the induced symplectic action on the ...
Laure Flapan, Sarah Frei, Lisa Marquand
wiley   +1 more source

Lexicographic Effect Algebras [PDF]

open access: yes, 2014
In the paper we investigate a class of effect algebras which can be represented in the form of the lexicographic product $\Gamma(H\lex G,(u,0))$, where $(H,u)$ is an Abelian unital po-group and $G$ is an Abelian directed po-group.
Dvurečenskij, Anatolij
core  

Density and duality theorems for regular Gabor frames

open access: yes, 2015
We investigate Gabor frames on locally compact abelian groups with time-frequency shifts along non-separable, closed subgroups of the phase space. Density theorems in Gabor analysis state necessary conditions for a Gabor system to be a frame or a Riesz ...
Jakobsen, Mads Sielemann, Lemvig, Jakob
core   +1 more source

Witten genera of complete intersections

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 2, February 2026.
Abstract We prove vanishing results for Witten genera of string generalized complete intersections in homogeneous Spinc$\text{Spin}^c$‐manifolds and in other Spinc$\text{Spin}^c$‐manifolds with Lie group actions. By applying these results to Fano manifolds with second Betti number equal to one we get new evidence for a conjecture of Stolz.
Michael Wiemeler
wiley   +1 more source

Generalized n-circular projections on JB*-triples and Hilbert C0(Ω)-modules

open access: yesConcrete Operators, 2017
Being expected as a Banach space substitute of the orthogonal projections on Hilbert spaces, generalized n-circular projections also extend the notion of generalized bicontractive projections on JB*-triples.
Ilišević Dijana   +2 more
doaj   +1 more source

Non-Abelian Stokes Theorem

open access: yes, 1995
10 pages, latex, no figures (to be published in "Advanced Electromagnetism: Foundations, Theory, Applications", eds. T.W.Barrett and D.M.Grimes, World Sci. Publ.
openaire   +2 more sources

A non-abelian Stickelberger theorem [PDF]

open access: yesCompositio Mathematica, 2010
AbstractLetL/kbe a finite Galois extension of number fields with Galois groupG. For every odd primepsatisfying certain mild technical hypotheses, we use values of ArtinL-functions to construct an element in the centre of the group ring ℤ(p)[G] that annihilates thep-part of the class group ofL.
Burns, David, Johnston, Henri
openaire   +3 more sources

On the topological ranks of Banach ∗$^*$‐algebras associated with groups of subexponential growth

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 2, February 2026.
Abstract Let G$G$ be a group of subexponential growth and C→qG$\mathcal C\overset{q}{\rightarrow }G$ a Fell bundle. We show that any Banach ∗$^*$‐algebra that sits between the associated ℓ1$\ell ^1$‐algebra ℓ1(G|C)$\ell ^1(G\,\vert \,\mathcal C)$ and its C∗$C^*$‐envelope has the same topological stable rank and real rank as ℓ1(G|C)$\ell ^1(G\,\vert ...
Felipe I. Flores
wiley   +1 more source

Abelian Theorems for the Real Weierstrass Transform over Compactly Supported Distributions

open access: yesMathematics
This paper explores Abelian theorems associated with the real Weierstrass transform over distributions of compact support. This study contributes to both mathematical analysis and distribution theory by offering new insights into the interaction between ...
Benito J. González   +2 more
doaj   +1 more source

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