Skip to main content
Log in

On the commutativity degree of a group algebra

  • Published:
Afrika Matematika Aims and scope Submit manuscript

Abstract

The aim of this paper is to give a generalization of the concept of commutativity degree of a finite group G (denoted by d(G)), to the concept of commutativity degree of a group algebra F[G], where G is a finite group and F is a finite field. We prove that two isoclinic groups for which the order of their centers are equal have the same commutativity degree. Finally, we give some lower and upper bounds for the commutativity degree of group algebra F[G] in terms of the order of G, the order of F and d(G).

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. Erdös, P., Turán, P.: On some problems of a statistical group-theory IV. Acta Math. Acad. Sci. Hung. 19, 413–435 (1968)

    Article  MathSciNet  Google Scholar 

  2. Erfanian, A., Rezaei, R., Lescot, P.: On the relative commutativity degree of a subgroup of a finite group. Commun. Algebra 35, 4183–4197 (2007)

    Article  MathSciNet  Google Scholar 

  3. Erfanian, A., Rezaei, R., Russo, F.G.: Relative \(n\)-isoclinism classes and relative \(n\)-th nilpotency degree of finite groups. Filomat 27(2), 367–371 (2013)

    Article  MathSciNet  Google Scholar 

  4. Gallagher, P.X.: The number of conjugacy classes in a finite group. Math. Z. 118, 175–179 (1970)

    Article  MathSciNet  Google Scholar 

  5. Gustafson, W.H.: What is the probability that two groups elements commute? Am. Math. Mon. 80, 1031–1034 (1973)

    Article  MathSciNet  Google Scholar 

  6. Hall, P.: The classification of prime-power groups. J. Reine Angew. Math. 182, 130–141 (1940)

    MathSciNet  MATH  Google Scholar 

  7. Lescot, P.: Isoclinism classes and commutativity degrees of finite groups. J. Algebra 177(3), 847–869 (1995)

    Article  MathSciNet  Google Scholar 

  8. Lescot, P.: Central extensions and commutativity degree. Commun. Algebra 29, 4451–4460 (2001)

    Article  MathSciNet  Google Scholar 

  9. Miller, G.A.: The second homology group of a group. Proc. Am. Math. Soc. 3, 588–595 (1952)

    Article  Google Scholar 

  10. Passman, D.S.: The Algebraic Structure of Group Rings. Krieger Publishing, Malabar (1985)

    MATH  Google Scholar 

  11. Rezaei, R., Erfanian, A.: On the commutativity degree of compact groups. Arch. Math. (Basel) 93(4), 201–212 (2009)

    Article  MathSciNet  Google Scholar 

  12. Robinson, D.J.S.: A Course in the Theory of Groups, 2nd edn. Springer, New York (1995)

    MATH  Google Scholar 

Download references

Acknowledgements

The authors would like to thank anonymous referees for providing us helpful and constructive comments and suggestions.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Rashid Rezaei.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chashiani, A., Rezaei, R. On the commutativity degree of a group algebra. Afr. Mat. 32, 1137–1145 (2021). https://doi.org/10.1007/s13370-021-00887-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13370-021-00887-5

Keywords

Mathematics Subject Classification

Navigation