Results 81 to 90 of about 40,139 (202)

Groups with many Subgroups which are Commensurable with some Normal Subgroup [PDF]

open access: yesAdvances in Group Theory and Applications, 2019
A subgroup H of a group G is called commensurable with a normal subgroup (cn) if there is N C G such that |HN/(H ∩ N)| is finite. We characterize generalized radical groups G which have one of the following finiteness conditions: (A) the minimal ...
Ulderico Dardano, Silvana Rinauro
doaj   +1 more source

$q$-Conjugacy classes in loop groups [PDF]

open access: yesProceedings of the American Mathematical Society, 2012
We classify twisted conjugacy classes in loop groups, restricted to classical groups. The main tool we used is the so-called D_q module, an object which is related to vector bundles over elliptic curves.
openaire   +3 more sources

Tessellation Groups, Harmonic Analysis on Non‐Compact Symmetric Spaces and the Heat Kernel in View of Cartan Convolutional Neural networks

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
ABSTRACT In this paper, we continue the development of the Cartan neural networks programme, launched with three previous publications, by focusing on some mathematical foundational aspects that we deem necessary for our next steps forward. The mathematical and conceptual results are diverse and span various mathematical fields, but the inspiring ...
Pietro Fré   +4 more
wiley   +1 more source

On conjugacy classes of the homomorphic images of a certain Bianchi group

open access: yesKuwait Journal of Science, 2017
In this paper, we classify the conjugacy classes of the action of PSL₂(O₂) on the projective line over finite fields, PL(F_{p}), where p is the M-S prime, by using the method of parametrization and investigate the behavoior of coset diagrams of these ...
Umar Shoaib
doaj  

Elements with finite Coxeter part in an affine Weyl group

open access: yes, 2012
Let $W_a$ be an affine Weyl group and $\eta:W_a\longrightarrow W_0$ be the natural projection to the corresponding finite Weyl group. We say that $w\in W_a$ has finite Coxeter part if $\eta(w)$ is conjugate to a Coxeter element of $W_0$.
He, Xuhua, Yang, Zhongwei
core   +2 more sources

Group Extensions with Infinite Conjugacy Classes [PDF]

open access: yesConfluentes Mathematici, 2017
We characterize the group property of being with infinite conjugacy classes (or icc, i.e. infinite and of which all conjugacy classes except {1} are infinite) for groups which are extensions of groups. We prove a general result for extensions of groups, then deduce characterizations in semi-direct products, wreath products, finite extensions, among ...
openaire   +3 more sources

Testing Hypotheses of Covariate Effects on Topics of Discourse

open access: yesStatistical Analysis and Data Mining: An ASA Data Science Journal, Volume 19, Issue 2, April 2026.
ABSTRACT We introduce an approach to topic modeling with document‐level covariates that remains tractable in the face of large text corpora. This is achieved by de‐emphasizing the role of parameter estimation in an underlying probabilistic model, assuming instead that the data come from a fixed but unknown distribution whose statistical functionals are
Gabriel Phelan, David A. Campbell
wiley   +1 more source

The Bruhat order on conjugation-invariant sets of involutions in the symmetric group [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
12 pages, 3 ...
Mikael Hansson
doaj   +1 more source

Conjugacy classes of parabolic subalgebras in complex semi-simple lie algebras [PDF]

open access: yes, 1976
For a complex semi simple Lie algebra g, Richardson's dense orbit theorem gives a map between conjugacy classes of parabolic subalgebras in g and conjugacy classes of nilpotent elements.
Johnston, D.S.
core  

A New Orthogonal Geomagnetic Coordinate System: The Generalized Eccentric Dipole

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The study of near‐Earth plasma environment relies heavily on accurate geomagnetic coordinate systems, mainly because the plasma motion is controlled by the E×B $\boldsymbol{E}\times \boldsymbol{B}$ drift and thus is constrained by the structure of the magnetic field.
Antoine Resseguier   +2 more
wiley   +1 more source

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