Results 1 to 10 of about 737 (186)

Fast Estimation and Valid Statistical Inference for Mixed-Effect Location-Scale Models Using Variational Inference. [PDF]

open access: yesStat Med
ABSTRACT With the development of modern technology, richer and more intensive longitudinal data are available for researchers to study more complex model structures. The Mixed‐Effect Location‐Scale Model (MELS) is useful for modeling the variance components in such data.
Wu BP, Hedeker D.
europepmc   +2 more sources

Restrictions on sets of conjugacy class sizes in arithmetic progressions [PDF]

open access: yesInternational Journal of Group Theory, 2023
We continue the investigation, that began in [M. Bianchi, A. Gillio and P. P. Pálfy, A note on finite groups in which the conjugacy class sizes form an arithmetic progression, Ischia group theory 2010, World Sci. Publ., Hackensack, NJ (2012) 20--25.] and
Alan R. Camina, Rachel D. Camina
doaj   +1 more source

Commuting conjugacy classes graph of the generalized dihedral and dicyclic groups [PDF]

open access: yesریاضی و جامعه, 2023
Suppose $G$ is a finite non-abelian group and $\Gamma(G)$ is a simple graph with the non-central conjugacy classes of $G$ as its vertex set. Two different non-central conjugacy classes $A$ and $B$ are assumed to be adjacent if and only if there are ...
Mohammadali Salahshour
doaj   +1 more source

Commuting Conjugacy Class Graph of G when G / Z(G)~=D2n [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
Suppose G is a finite non-abelian group and Γ(G) is a simple graph with the non-central conjugacy classes of G as its vertex set. Two different noncentral conjugacy classes C and B are assumed to be adjacent in Γ(G) if and only if there are elements a ...
Mohammad Ali Salahshour
doaj   +1 more source

Rational Class Sizes and Their Implications for the Structure of Finite Groups [PDF]

open access: yesAdvances in Group Theory and Applications, 2022
This paper considers the implications of rational class sizes for the structure of finite groups. Ever since Itô introduced the notion of a conjugate type vector in 1953, the problem of unraveling the connections between the set of conjugacy class sizes ...
Hossein Shahrtash
doaj   +1 more source

COMMON NEIGHBOURHOOD SPECTRUM AND ENERGY OF COMMUTING CONJUGACY CLASS GRAPH [PDF]

open access: yesJournal of Algebraic Systems, 2023
In this paper, we compute the common neighbourhood (abbreviated as CN) spectrum and the common neighbourhood energy of commuting conjugacy class graph of several families of finite non-abelian groups.
Firdous Jannat, Rajat Nath
doaj   +1 more source

From conjugacy classes in the Weyl group to semisimple conjugacy classes [PDF]

open access: yesPure and Applied Mathematics Quarterly, 2021
Suppose $G$ is a connected complex semisimple group and $W$ is its Weyl group. The lifting of an element of $W$ to $G$ is semisimple. This induces a well-defined map from the set of elliptic conjugacy classes of $W$ to the set of semisimple conjugacy classes of $G$. In this paper, we give a uniform algorithm to compute this map.
Adams, Jeffrey, He, Xuhua, Nie, Sian
openaire   +2 more sources

Cordial elements and dimensions of affine Deligne–Lusztig varieties

open access: yesForum of Mathematics, Pi, 2021
The affine Deligne–Lusztig variety $X_w(b)$ in the affine flag variety of a reductive group ${\mathbf G}$ depends on two parameters: the $\sigma $ -conjugacy class $[b]$ and the element w in the Iwahori–Weyl group $\tilde ...
Xuhua He
doaj   +1 more source

Classification of the Morse – Smale flows on surfaces with a finite moduli of stability number in sense of topological conjugacy [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2021
Purpose. The purpose of this study is to consider the class of Morse – Smale flows on surfaces, to characterize its subclass consisting of flows with a finite number of moduli of stability, and to obtain a topological classification of such flows ...
Kruglov, Vladislav Evgenievich   +1 more
doaj   +1 more source

Conjugacy classes contained in normal subgroups: an overview [PDF]

open access: yesInternational Journal of Group Theory, 2018
We survey known results concerning how the conjugacy classes contained in a normal subgroup and their sizes exert an influence on the normal structure of a finite group.
Antonio Beltran   +2 more
doaj   +1 more source

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