Results 61 to 70 of about 36,197 (185)

GROUPS WITH SMALL CONJUGACY CLASSES

open access: yesTamkang Journal of Mathematics, 1999
A group satisfies property (*) iff every conjugacy class has size not greater than 2. This paper proves properties of this type of group and conclude that it is a central product of an abelian group with 2-groups that are "almost" extra special.
How, G. A., Chuang, F. C.
openaire   +3 more sources

Rigidity of anti‐de Sitter (2+1)‐spacetimes with convex boundary near the Fuchsian locus

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract We prove that globally hyperbolic compact anti‐de Sitter (2+1)‐spacetimes with a strictly convex spacelike boundary that is either smooth or polyhedral and whose holonomy is close to Fuchsian are determined by the induced metric on the boundary.
Roman Prosanov, Jean‐Marc Schlenker
wiley   +1 more source

Conjugacy classes in Möbius groups [PDF]

open access: yesGeometriae Dedicata, 2010
revised version.
openaire   +2 more sources

Further rigid triples of classes in $G_{2}$ [PDF]

open access: yesInternational Journal of Group Theory, 2019
We establish the existence of two rigid triples of conjugacy classes in the algebraic group G2 in characteristic 5, complementing results of the second author with Liebeck and Marion.
Matthew Conder, Alastair Litterick
doaj   +1 more source

Evidence and Causes of an Unusual Super Plasma Bubble Occurrence During Weak Geomagnetic Conditions Over Europe

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract Using data from a cluster of ground‐based global navigation satellite system, we observed spatially extended enhanced ROTI over the European longitudes during a weak geomagnetic storm (Dst ≈ ${\approx} $ −50 nT) on 4 November 2023. The enhanced ROTI is extended over an extensive geographical latitudinal range of 46°N.
Chandan Kapil   +4 more
wiley   +1 more source

Turbulence, amalgamation and generic automorphisms of homogeneous structures [PDF]

open access: yes, 2006
We study topological properties of conjugacy classes in Polish groups, with emphasis on automorphism groups of homogeneous countable structures. We first consider the existence of dense conjugacy classes (the topological Rokhlin property).
Kechris, Alexander S.   +1 more
core   +1 more source

On the distribution of conjugacy classes between the cosets of a finite group in a cyclic extension

open access: yes, 2007
Let G be a finite group and H a normal subgroup such that G/H is cyclic. Given a conjugacy class g^G of G we define its centralizing subgroup to be HC_G(g). Let K be such that H\le K\le G.
Britnell, John R., Wildon, Mark
core   +1 more source

Scissors congruence K$K$‐theory for equivariant manifolds

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract We introduce a scissors congruence K$K$‐theory spectrum that lifts the equivariant scissors congruence groups for compact G$G$‐manifolds with boundary, and we show that on π0$\pi _0$, this is the source of a spectrum‐level lift of the Burnside ring‐valued equivariant Euler characteristic of a compact G$G$‐manifold.
Mona Merling   +4 more
wiley   +1 more source

Character expansiveness in finite groups [PDF]

open access: yesInternational Journal of Group Theory, 2013
We say that a finite group $G$ is conjugacy expansive if for anynormal subset $S$ and any conjugacy class $C$ of $G$ the normalset $SC$ consists of at least as many conjugacy classes of $G$ as$S$ does.
Attila Maroti   +2 more
doaj  

On non-hyperbolic algebraic automorphisms of a two-dimensional torus

open access: yesЖурнал Средневолжского математического общества, 2021
This paper contains a complete classification of algebraic non-hyperbolic automorphisms of a two-dimensional torus, announced by S. Batterson in 1979. Such automorphisms include all periodic automorphisms.
Sidorov Sergey V., Chilina Ekaterina E.
doaj   +1 more source

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