Hurwitz components of groups with socle PSL(3, q)

Authors

  • H.M. Mohammed Salih Department of Mathematics, Faculty of Science, Soran University Kawa St. Soran, Erbil, Iraq

DOI:

https://doi.org/10.17398/2605-5686.36.1.51

Keywords:

Genus zero systems, Braid orbits, Connected components

Abstract

For a finite group G, the Hurwitz space Hinr,g(G) is the space of genus g covers of the Riemann sphere P1 with r branch points and the monodromy group G. In this paper, we give a complete list of some almost simple groups of Lie rank two. That is, we assume that G is a primitive almost simple groups of Lie rank two. Under this assumption we determine the braid orbits on the suitable Nielsen classes, which is equivalent to finding connected components in Hinr,g(G).

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References

M. Aschbacher, On conjectures of Guralnick and Thompson, J. Algebra 135 (2) (1990), 277 – 343.

M. Aschbacher, R. Guralnick, K. Magaard, Rank 3 permutation characters and primitive groups of low genus, preprint.

M. Aschbacher, L. Scott, Maximal subgroups of finite groups, J. Algebra 92 (1) (1985), 44 – 80.

D. Frohardt, R. Guralnick, K. Magaard, Genus 2 point actions of classical groups, preprint.

D. Frohardt, R. Guralnick, K. Magaard, Genus 0 actions of groups of Lie rank 1, in “Arithmetic Fundamental Groups and Noncommutative Algebra”, Proceedings of Symposia in Pure Mathematics, 70, AMS, Providence, Rhode Island, 2002, 449 – 483.

D. Frohardt, K. Magaard, Composition factors of monodromy groups, Ann. of Math. 154 (2) (2001), 327 – 345.

The GAP Group, GAP – Groups, Algorithms, and Programming, Version 4.6.2, 2013. http://www.gap-system.org

W. Gehao, “Genus Zero Systems for Primitive Groups of Affine Type”, PhD Thesis, University of Birmingham, 2011.

R. M. Guralnick, J. G. Thompson, Finite groups of genus zero, J. Algebra 131 (1) (1990), 303 – 341.

X. Kong, Genus 0, 1, 2 actions of some almost simple groups of lie rank 2, PhD Thesis, Wayne State University, 2011.

K. Magaard, S. Shpectorov, G. Wang, Generating sets of affine groups of low genus, in “Computational Algebraic and Analytic Geometry”, Contemp. Math., 572, AMS, Providence, Rhode Island, 2012, 173 – 192.

H. Mohammed Salih, “Finite Groups of Small Genus”, PhD Thesis, University of Birmingham, 2014.

H. Mohammed Salih, Connected components of affine primitive permutation groups, J. Algebra 561 (2020), 355 – 373.

M. G. Neubauer, “On Solvable Monodromy Groups of Fixed Genus”, PhD Thesis, University of Southern California, 1989.

T. Shih, A note on groups of genus zero, Comm. Algebra 19 (10) (1991), 2813 – 2826.

H. Völklein, “Groups as Galois Groups”, Cambridge Studies in Advanced Mathematics, 53, Cambridge University Press, 1996.

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Published

2021-06-20

Issue

Section

Algebra

How to Cite

Hurwitz components of groups with socle PSL(3, q). (2021). Extracta Mathematicae, 36(1), 51-62. https://doi.org/10.17398/2605-5686.36.1.51