Skip to main content

Computing Closures of Finitely Generated Subgroups of the Free Group

  • Conference paper
Book cover Algorithmic Problems in Groups and Semigroups

Part of the book series: Trends in Mathematics ((TM))

Abstract

The aim of this paper is to present computing techniques for the finitely generated subgroups of the free group. The focus is the computation of the closures of a finitely generated subgroup for certain profinite topologies, namely the pro-p and the pro-nilpotent topology. However the first section concentrates on the classical manipulation of finitely generated subgroups when more elementary operations are concerned: computing the rank, the index or a basis; calculating an intersection.

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

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. J.-C. Birget, S. Margolis, J. Meakin, and P. Weil, PSPACE-completeness of certain algorithmic problems on the subgroups of free groups, in Proceedings of the 21st International Colloquium on Automata, Languages and Programming (ICALP94), S. Abiteboul and E. Shamir, eds., Lecture Notes in Comput. Sci. 820, Springer-Verlag, Berlin, New York, Heidelberg, 1994, 274–285; Theoret. Comput. Sci., to appear.

    Google Scholar 

  2. M. Hall, Jr., A topology for free groups and related groups, Ann. Math., 52 (1950), 127–139.

    Article  Google Scholar 

  3. R.C. Lyndon and P.E. Schupp, Combinatorial Group Theory, Ergebnisse der Mathematik und ihrer Grenzgebiete, Band 89, Springer-Verlag, Berlin, 1977.

    Google Scholar 

  4. S. Margolis and J. Meakin, Free inverse monoids and graph immersions, Internat. J. Algebra Comput., 3 (1993), 79–100.

    Article  MathSciNet  MATH  Google Scholar 

  5. S. Margolis, M. Sapir, and P. Weil, Closed subgroups in pro-p topologies and the extension problem for inverse automata, to appear.

    Google Scholar 

  6. L. Ribes and P.A. Zalesskii, The pro-p topology of a free group and algorithmic problems in semigroups, Internat. J. Algebra Comput., 4 (1994), 359–374.

    Article  MathSciNet  MATH  Google Scholar 

  7. J. Rotman, An introduction to the Theory of Groups, 4th edition, Springer-Verlag, New York, 1995.

    MATH  Google Scholar 

  8. J. Stallings, The topology of graphs, Invent. Math., 71 (1983), 551–565.

    Article  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2000 Springer Science+Business Media New York

About this paper

Cite this paper

Weil, P. (2000). Computing Closures of Finitely Generated Subgroups of the Free Group. In: Birget, JC., Margolis, S., Meakin, J., Sapir, M. (eds) Algorithmic Problems in Groups and Semigroups. Trends in Mathematics. Birkhäuser, Boston, MA. https://doi.org/10.1007/978-1-4612-1388-8_16

Download citation

  • DOI: https://doi.org/10.1007/978-1-4612-1388-8_16

  • Publisher Name: Birkhäuser, Boston, MA

  • Print ISBN: 978-1-4612-7126-0

  • Online ISBN: 978-1-4612-1388-8

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics