Abstract
LetG be a quasisimple Chevalley group. We give an upper bound for the covering number cn(G) which is linear in the rank ofG, i.e. we give a constantd such that for every noncentral conjugacy classC ofG we haveC rd=G, wherer=rankG.
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References
[ACM] Z. Arad, D. Chillag and G. Moran,Groups with a small covering number, in [AH, Chapter 4].
[AFM] Z. Arad, E. Fisman and M. Muzychuk,Order evaluation of products of subsets in finite groups and its applications I, Journal of Algebra182 (1996), 577–603.
[AH] Z. Arad and M. Herzog,Products of Conjugacy Classes in Groups, Lecture Notes in Mathematics1112, Springer-Verlag, New York, 1985.
[AHS] Z. Arad, M. Herzog and J. Stavi,Powers and products of conjugacy classes, in [AH, Chapter 1].
[Bo] A. Borel,Linear Algebraic Groups, 2nd enlarged edition, Graduate Texts in Mathematics126, Springer-Verlag, New York, 1991.
[Bou] N. Bourbaki,Groupes et Algèbres de Lie IV, V, VI, Hermann, Paris, 1968.
[Car1] R. W. Carter,Simple Groups of Lie Type, Wiley, London, 1989.
[Car2] R. W. Carter,Finite Groups of Lie Type, Wiley, Chichester, 1993.
[Dv] Y. Dvir,Covering properties of permutation groups, in [AH, Chapter 3].
[EGI] E. W. Ellers and N. L. Gordeev,Gauss decomposition with prescribed semisimple part in classical Chevalley groups, Communications in Algebra22 (1994), 5935–5950.
[EGII] E. W. Ellers and N. L. Gordeev,Gauss decomposition with prescribed semisimple part in Chevalley groups II: exceptional cases, Communications in Algebra23 (1995), 3085–3098.
[EGIII] E. W. Ellers and N. L. Gordeev,Gauss decomposition with prescribed semisimple part in classical Chevalley groups III: twisted groups, Communications in Algebra24 (1996), 4447–4475.
[El] E. W. Ellers,Decomposition of equiaffinities into reflections, Geometriae Dedicata6 (1977), 297–304.
[GLS] D. Gorenstein, R. Lyons and R. Solomon,The Classification of the Finite Simple Groups, Math Surveys and Monographs 40, Number 1, American Mathematical Society, Providence, R.I., 1994.
[Go1] N. L. Gordeev,Products of conjugacy classes in algebraic groups I, Journal of Algebra173 (1995), 715–744.
[Go2] N. L. Gordeev,Products of conjugacy classes in algebraic groups II, Journal of Algebra173 (1995), 745–779.
[Ka,r] S. Karni,Covering numbers of groups of small order and sporadic groups, in [AH, Chapter 2].
[LL] R. Lawther and M. W. Liebeck,On the diameter of a Cayley graph of a simple group of Lie type based on a conjugacy class, Journal of Combinatorial Theory, Series A, to appear.
[Lev] A. Lev,The covering number of the group PSL n (F), Journal of Algebra182 (1996), 60–84.
[So] A. R. Sourour,A factorization theorem for matrices, Linear and Multilinear Algebra19 (1986), 141–147.
[St] R. Steinberg,Lectures on Chevalley Groups, Yale University, 1967.
[Va] N. A. Vavilov,The geometry of long root subgroups in Chevalley groups, Vestnik Leningradskogo Universiteta Matematika Mekhanika Atronomiya (1988), vyp 1, 8–11, 116; translated in Vestnik Leningrad University Mathematics21 (1988), 5–10.
[Z] I. Zisser,The covering numbers of the sporadic simple groups, Israel Journal of Mathematics67 (1989), 217–224.
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Research supported in part by NSERC Canada Grant A7251.
Research supported in part by the Hermann Minkowski-Minerva Center for Geometry at Tel Aviv University.
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Ellers, E.W., Gordeev, N. & Herzog, M. Covering numbers for Chevalley groups. Isr. J. Math. 111, 339–372 (1999). https://doi.org/10.1007/BF02810691
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DOI: https://doi.org/10.1007/BF02810691