The covering number of $M_{24}$

Cilt: 3 Sayı: 3 9 Ağustos 2016
  • Michael Epstein
  • Spyros S. Magliveras
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EN

The covering number of $M_{24}$

Öz

A  finite cover $\mathcal{C}$ of a group $G$ is a finite collection of proper subgroups of $G$ such that $G$ is equal to the union of all of the members of $\mathcal{C}$. Such a cover is called {\em minimal} if it has the smallest cardinality among all finite covers of $G$. The  covering number of $G$, denoted by $\sigma(G)$, is the number of subgroups in a minimal cover of $G$. In this paper the covering number of the Mathieu group $M_{24}$ is shown to be 3336.

Kaynakça

  1. W. Bosma, J. Cannon, C. Playoust, The Magma algebra system I: The user language, J. Symbolic Comput. 24(3-4) (1997) 235–265.
  2. R. A. Bryce, V. Fedri, L. Serena, Subgroup coverings of some linear groups, Bull. Austral. Math. Soc. 60(2) (1999) 227–238.
  3. J. H. E. Cohn, On n-sum groups, Math. Scand. 75(1) (1994) 44–58.
  4. J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker, R. A. Wilson, Atlas of Finite Groups, Clarendon Press, Oxford, 1985.
  5. M. Epstein, S.S. Magliveras, D. Nikolova-Popova, The covering numbers of $A_9$ and $A_11$, to appear in the J. Combin. Math. Combin. Comput.
  6. P. E. Holmes, Subgroup coverings of some sporadic groups, J. Combin. Theory Ser. A 113(6) (2006) 1204–1213.
  7. L. C. Kappe, J. L. Redden, On the covering number of small alternating groups, Contemp. Math. 511 (2010) 109–125.
  8. L. C. Kappe, D. Nikolova-Popova, E. Swartz, On the covering number of small symmetric groups and some sporadic simple groups, arXiv:1409.2292v1 [math.GR].

Ayrıntılar

Birincil Dil

İngilizce

Konular

-

Bölüm

-

Yazarlar

Michael Epstein Bu kişi benim

Spyros S. Magliveras Bu kişi benim

Yayımlanma Tarihi

9 Ağustos 2016

Gönderilme Tarihi

8 Ağustos 2016

Kabul Tarihi

-

Yayımlandığı Sayı

Yıl 2016 Cilt: 3 Sayı: 3

Kaynak Göster

APA
Epstein, M., & Magliveras, S. S. (2016). The covering number of $M_{24}$. Journal of Algebra Combinatorics Discrete Structures and Applications, 3(3), 155-158. https://doi.org/10.13069/jacodesmath.90728
AMA
1.Epstein M, Magliveras SS. The covering number of $M_{24}$. Journal of Algebra Combinatorics Discrete Structures and Applications. 2016;3(3):155-158. doi:10.13069/jacodesmath.90728
Chicago
Epstein, Michael, ve Spyros S. Magliveras. 2016. “The covering number of $M_{24}$”. Journal of Algebra Combinatorics Discrete Structures and Applications 3 (3): 155-58. https://doi.org/10.13069/jacodesmath.90728.
EndNote
Epstein M, Magliveras SS (01 Ağustos 2016) The covering number of $M_{24}$. Journal of Algebra Combinatorics Discrete Structures and Applications 3 3 155–158.
IEEE
[1]M. Epstein ve S. S. Magliveras, “The covering number of $M_{24}$”, Journal of Algebra Combinatorics Discrete Structures and Applications, c. 3, sy 3, ss. 155–158, Ağu. 2016, doi: 10.13069/jacodesmath.90728.
ISNAD
Epstein, Michael - Magliveras, Spyros S. “The covering number of $M_{24}$”. Journal of Algebra Combinatorics Discrete Structures and Applications 3/3 (01 Ağustos 2016): 155-158. https://doi.org/10.13069/jacodesmath.90728.
JAMA
1.Epstein M, Magliveras SS. The covering number of $M_{24}$. Journal of Algebra Combinatorics Discrete Structures and Applications. 2016;3:155–158.
MLA
Epstein, Michael, ve Spyros S. Magliveras. “The covering number of $M_{24}$”. Journal of Algebra Combinatorics Discrete Structures and Applications, c. 3, sy 3, Ağustos 2016, ss. 155-8, doi:10.13069/jacodesmath.90728.
Vancouver
1.Michael Epstein, Spyros S. Magliveras. The covering number of $M_{24}$. Journal of Algebra Combinatorics Discrete Structures and Applications. 01 Ağustos 2016;3(3):155-8. doi:10.13069/jacodesmath.90728