Conjugacy pinched and cyclically pinched one-relator groups.

Benjamin Fine; Gerhard Rosenberger; Michael Stille

Revista Matemática de la Universidad Complutense de Madrid (1997)

  • Volume: 10, Issue: 2, page 207-227
  • ISSN: 1139-1138

Abstract

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Here we consider two classes of torsion-free one-relator groups which have proved quite amenable to study-the cyclically pinched one-relator groups and the conjugacy pinched one-relator groups. The former is the class of groups which are free products of free groups with cyclic amalgamations while the latter is the class of HNN extensions of free groups with cyclic associated subgroups. Both are generalizations of surface groups. We compare and contrast results in these classes relative to n-freeness, separability properties including conjugacy separability, subgroup separability and residual finiteness, decision theoretic properties including the isomorphism problem and hyperbolicity.

How to cite

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Fine, Benjamin, Rosenberger, Gerhard, and Stille, Michael. "Conjugacy pinched and cyclically pinched one-relator groups.." Revista Matemática de la Universidad Complutense de Madrid 10.2 (1997): 207-227. <http://eudml.org/doc/44269>.

@article{Fine1997,
abstract = {Here we consider two classes of torsion-free one-relator groups which have proved quite amenable to study-the cyclically pinched one-relator groups and the conjugacy pinched one-relator groups. The former is the class of groups which are free products of free groups with cyclic amalgamations while the latter is the class of HNN extensions of free groups with cyclic associated subgroups. Both are generalizations of surface groups. We compare and contrast results in these classes relative to n-freeness, separability properties including conjugacy separability, subgroup separability and residual finiteness, decision theoretic properties including the isomorphism problem and hyperbolicity.},
author = {Fine, Benjamin, Rosenberger, Gerhard, Stille, Michael},
journal = {Revista Matemática de la Universidad Complutense de Madrid},
keywords = {Teoría de grupos; Algebra relacional; Compacidad; Superficies; Topología; Funciones de variable compleja; one-relator groups; combinatorial group theory},
language = {eng},
number = {2},
pages = {207-227},
title = {Conjugacy pinched and cyclically pinched one-relator groups.},
url = {http://eudml.org/doc/44269},
volume = {10},
year = {1997},
}

TY - JOUR
AU - Fine, Benjamin
AU - Rosenberger, Gerhard
AU - Stille, Michael
TI - Conjugacy pinched and cyclically pinched one-relator groups.
JO - Revista Matemática de la Universidad Complutense de Madrid
PY - 1997
VL - 10
IS - 2
SP - 207
EP - 227
AB - Here we consider two classes of torsion-free one-relator groups which have proved quite amenable to study-the cyclically pinched one-relator groups and the conjugacy pinched one-relator groups. The former is the class of groups which are free products of free groups with cyclic amalgamations while the latter is the class of HNN extensions of free groups with cyclic associated subgroups. Both are generalizations of surface groups. We compare and contrast results in these classes relative to n-freeness, separability properties including conjugacy separability, subgroup separability and residual finiteness, decision theoretic properties including the isomorphism problem and hyperbolicity.
LA - eng
KW - Teoría de grupos; Algebra relacional; Compacidad; Superficies; Topología; Funciones de variable compleja; one-relator groups; combinatorial group theory
UR - http://eudml.org/doc/44269
ER -

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