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Dive into the research topics where Donald J. Collins is active.

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Featured researches published by Donald J. Collins.


Journal of Algebra | 1987

A presentation for the stabiliser of an element in a free product

Donald J. Collins; Heiner Zieschang

Let G = ∗i ϵ l Gi be the free product of finitely many indecomposable groups none of which are infinite cyclic. With natural assumptions on the factors Gi, the stabiliser in the automorphism group Aut G of any element of G is finitely presented.


Mathematische Zeitschrift | 1981

Aspherical group presentations

Ian Chiswell; Donald J. Collins; Johannes Huebschmann


Mathematische Annalen | 1982

Spherical diagrams and identities among relations

Donald J. Collins; Johannes Huebschmann


Proceedings of The London Mathematical Society | 1977

The Conjugacy Problem and Subgroups of Finite Index

Donald J. Collins; Charles F. Miller


Mathematische Zeitschrift | 1984

Rescuing the whitehead method for free products, I: Peak reduction

Donald J. Collins; Heiner Zieschang


Proceedings of The London Mathematical Society | 1978

The Automorphism Towers of Some One-Relator Groups

Donald J. Collins


Mathematische Zeitschrift | 1984

Rescuing the Whitehead method for free products, II: The algorithm

Donald J. Collins; Heiner Zieschang


Mathematische Zeitschrift | 1977

Generation and presentation of one-relator groups with centre

Donald J. Collins


Archiv der Mathematik | 1970

On Recognising Properties of Groups Which Have Solvable Word Problem

Donald J. Collins


Proceedings of The London Mathematical Society | 1973

Free Subgroups of Small Cancellation Groups

Donald J. Collins

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Johannes Huebschmann

Centre national de la recherche scientifique

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Ian Chiswell

Queen Mary University of London

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Arye Juhász

Technion – Israel Institute of Technology

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