Skip to main content
Log in

Endotrivial Modules for the Schur Covers of the Symmetric and Alternating Groups

  • Published:
Algebras and Representation Theory Aims and scope Submit manuscript

Abstract

We investigate the endotrivial modules for the Schur covers of the symmetric and alternating groups and determine the structure of their group of endotrivial modules in all characteristics. We provide a full description of this group by generators and relations in all cases.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Auslander, M., Carlson, J.F.: Almost-split sequences and group rings. J. Algebra 103(1), 122–140 (1986)

    Article  MATH  MathSciNet  Google Scholar 

  2. Bosma, W., Cannon, J., Playoust, C.: The Magma algebra system. I. The user language. J. Symb. Comput. 24(3-4), 235–265 (1997)

    Article  MATH  MathSciNet  Google Scholar 

  3. Benson, D.J.: Representations and cohomology. I, volume 30 of Cambridge Studies in Advanced Mathematics, 2nd. Cambridge University Press, Cambridge (1998)

    Google Scholar 

  4. Bessenrodt, C.: Endotrivial modules and the Auslander-Reiten quiver. In: Representation theory of finite groups and finite-dimensional algebras (Bielefeld, 1991), vol. 95, pp 317–326. Birkhäuser, Basel (1991)

  5. Bonnafé, C.: Representations of SL2(F q ), volume 13 of Algebra and Applications. Springer-Verlag London, Ltd., London (2011)

    Google Scholar 

  6. Breuer, T.: The GAP Character Table Library, Version 1.2.1. http://www.math.rwth-aachen.de/~Thomas.Breuer/ctbllib (2012)

  7. Carlson, J.F.: Maximal elementary abelian subgroups of rank 2. J. Group Theory 10(1), 5–13 (2007)

    Article  MATH  MathSciNet  Google Scholar 

  8. Conway, J.H., Curtis, R.T., Norton, S.P., Parker, R.A., Wilson, R.A.: Atlas of finite groups. Oxford University Press, Eynsham (1985)

    MATH  Google Scholar 

  9. Carlson, J.F., Hemmer, D.J., Mazza, N.: The group of endotrivial modules for the symmetric and alternating groups. Proc. Edinb. Math. Soc. (2) 53(1), 83–95 (2010)

    Article  MATH  MathSciNet  Google Scholar 

  10. Carlson, J.F., Mazza, N., Nakano, D.K.: Endotrivial modules for finite groups of Lie type. J. Reine Angew. Math. 595, 93–119 (2006)

    MATH  MathSciNet  Google Scholar 

  11. Carlson, J.F., Mazza, N., Nakano, D.K.: Endotrivial modules for the symmetric and alternating groups. Proc. Edinb. Math. Soc. (2) 52(1), 45–66 (2009)

    Article  MATH  MathSciNet  Google Scholar 

  12. Carlson, J.F., Mazza, N., Nakano, D.K.: Endotrivial modules for the general linear group in a nondefining characteristic. Math. Z. 278(3-4), 901–925 (2014)

    Article  MATH  MathSciNet  Google Scholar 

  13. Carlson, J.F., Mazza, N., Thévenaz, J.: Endotrivial modules for p-solvable groups. Trans. Amer. Math. Soc. 363(9), 4979–4996 (2011)

    Article  MATH  MathSciNet  Google Scholar 

  14. Carlson, J.F., Mazza, N., Thévenaz, J.: Endotrivial modules over groups with quaternion or semi-dihedral Sylow 2-subgroup. J. Eur. Math. Soc. (JEMS) 15(1), 157–177 (2013)

    Article  MATH  MathSciNet  Google Scholar 

  15. Carlson, J.F., Mazza, N., Thévenaz, J.: Torsion-free endotrivial modules. J. Algebra 398, 413–433 (2014)

    Article  MATH  MathSciNet  Google Scholar 

  16. Carlson, J.F., Thévenaz, J.: The classification of endo-trivial modules. Invent. Math. 158(2), 389–411 (2004)

    MATH  MathSciNet  Google Scholar 

  17. Carlson, J.F., Thévenaz, J.: Torsion endo-trivial modules. Invent. Math. 3(4), 303–335 (2006)

    Google Scholar 

  18. Gorenstein, D., Lyons, R., Solomon, R.: The classification of the finite simple groups. Number 3. Part I., Chapter A, volume 40 of Mathematical Surveys and Monographs. American Mathematical Society, Providence, RI (1998)

    Google Scholar 

  19. Glauberman, G., Mazza, N.: p-groups with maximal elementary abelian subgroups of rank 2. J. Algebra 323(6), 1729–1737 (2010)

    Article  MATH  MathSciNet  Google Scholar 

  20. Hoffman, P.N., Humphreys, J.F.: Projective representations of the symmetric groups. Oxford Mathematical Monographs. The Clarendon Press, Oxford University Press, New York, 1992. Q-functions and shifted tableaux, Oxford Science Publications

  21. Lassueur, C., Mazza, N.: Endotrivial modules for the sporadic groups and their covers. J. Pure Appl. Algebra. To appear, doi:10.1016/j.jpaa.2012.04.003

  22. Lassueur, C., Malle, G., Schulte, E.: Simple endotrivial modules for quasi-simple groups. J. Reine Angew. Math. To appear, doi:10.1515/crelle-2013-0100

  23. MacWilliams, A.R.: On 2-groups with no normal abelian subgroups of rank 3, and their occurrence as Sylow 2-subgroups of finite simple groups. Trans. Amer. Math. Soc. 150, 345–408 (1970)

    MATH  MathSciNet  Google Scholar 

  24. Mazza, N.: Connected components of the category of elementary abelian p-subgroups. J. Algebra 320(12), 4242–4248 (2008)

    Article  MATH  MathSciNet  Google Scholar 

  25. Mazza, N., Thévenaz, J.: Endotrivial modules in the cyclic case. Arch. Math. (Basel) 89(6), 497–503 (2007)

    Article  MATH  MathSciNet  Google Scholar 

  26. Weisner, L.: On the Sylow subgroups of the symmetric and alternating groups. Amer. J. Math. 47(2), 121–124 (1925)

    Article  MATH  MathSciNet  Google Scholar 

  27. Wilson, R.A.: The finite simple groups, volume 251 of Graduate Texts in Mathematics. Springer-Verlag London, Ltd., London (2009)

    Book  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Caroline Lassueur.

Additional information

Presented by Radha Kessar.

The first author gratefully acknowledges partial financial support by SNF Fellowship for Prospective Researchers PBELP2_143516.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Lassueur, C., Mazza, N. Endotrivial Modules for the Schur Covers of the Symmetric and Alternating Groups. Algebr Represent Theor 18, 1321–1335 (2015). https://doi.org/10.1007/s10468-015-9542-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10468-015-9542-y

Keywords

Mathematics Subject Classification (2010)

Navigation