On an Inequality of Dimension-like Invariants for Finite Groups
@article{Fernando2015OnAI, title={On an Inequality of Dimension-like Invariants for Finite Groups}, author={Ravi Fernando}, journal={arXiv: Group Theory}, year={2015} }
In this paper, we introduce several notions of "dimension" of a finite group, involving sizes of generating sets and certain configurations of maximal subgroups. We focus on the inequality $m(G) \leq \mathrm{MaxDim}(G)$, giving a family of examples where the inequality is strict, and showing that equality holds if $G$ is supersolvable.
10 Citations
On Behaviors of Maximal Dimension
- Mathematics
- 2018
In this paper, we investigate behaviors of Maximal Dimension, a group invariant involving certain configuration of maximal subgroups, which we denote by MaxDim. We prove that in some special cases,…
On the dimension of an Abelian group
- MathematicsNotes on Number Theory and Discrete Mathematics
- 2021
We introduce a measure of dimensionality of an Abelian group. Our definition of dimension is based on studying perpendicularity relations in an Abelian group. For G ≅ ℤn, dimension and rank coincide…
On the Intersection Numbers of Finite Groups
- Mathematics
- 2019
The covering number of a nontrivial finite group $G$, denoted $\sigma(G)$, is the smallest number of proper subgroups of $G$ whose set-theoretic union equals $G$. In this article, we focus on a dual…
On the minimal dimension of a finite simple group
- MathematicsJ. Comb. Theory, Ser. A
- 2020
Irredundant generating sets and dimension-like invariants of the finite group
- Mathematics
- 2017
Whiston proved that the maximum size of an irredundant generating set in the symmetric group $S_n$ is $n-1$, and Cameron and Cara characterized all irredundant generating sets of $S_n$ that achieve…
Maximal irredundant families of minimal size in the alternating group
- MathematicsArchiv der Mathematik
- 2019
Let G be a finite group. A family $${\mathcal {M}}$$M of maximal subgroups of G is called “irredundant” if its intersection is not equal to the intersection of any proper subfamily. $${\mathcal…
Maximal subgroups of finite soluble groups in general position
- Mathematics
- 2015
For a finite group G we investigate the difference between the maximum size $${{\mathrm{MaxDim}}}(G)$$MaxDim(G) of an “independent” family of maximal subgroups of G and maximum size m(G) of an…
The Replacement Property of PSL$(2,p)$ and PSL$(2,p^2)$
- Mathematics
- 2017
In 2014, Benjamin Nachman showed that when $p\equiv$1 mod 8, the 2-dimensional projective linear group over the field of $p$ elements fails the replacement property if the maximal length $m$ of an…
Maximal subgroups of finite soluble groups in general position
- Materials ScienceAnnali di Matematica Pura ed Applicata (1923 -)
- 2015
For a finite group G we investigate the difference between the maximum size MaxDim(G)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb}…
Maximal irredundant families of minimal size in the alternating group
- Materials ScienceArchiv der Mathematik
- 2019
Let G be a finite group. A family M\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs}…
References
SHOWING 1-10 OF 11 REFERENCES
Independent Sets in Some Classical Groups of Dimension Three
- Mathematics
- 2012
Given a finite group G, an independent set S in G is a set where no element of S can be written as a word in the other elements of S. A minimax set is an independent generating set for G of largest…
Supersolubility and some Characterizations of Finite Supersoluble Groups, 2nd Edition
- Mathematics
- 2000
Preface In chapter 1 we introduce the idea of a supersoluble group and we investigate its connexion with other similar concepts such as solubility and nilpotency. In chapter 2 we look at supersoluble…