# Geometry & Topology Publications

Geometry & Topology Publications (GTP) is non-profit making
publication enterprise specialising in electronic publication. GTP is
based in the Mathematics Department of the University of Warwick at
Coventry, UK.

GTP publishes and maintains open access electronic copies of the following:
All Geometry & Topology Publications are deposited in the arXiv.

Low-cost printed copy is available.

* Impartiality statement endorsed by the executive
committee.*

The purpose of all Geometry & Topology Publications is the
advancement of mathematics. Editors evaluate submissions strictly on
the basis of scientific merit, without regard to authors' nationality,
country of residence, institutional affiliation, sex, ethnic origin
and political views.
Executive Committee:

Joan Birman, Robion Kirby
(Chair), Haynes Miller, Walter Neumann, Robert Oliver, Colin Rourke, Brian Sanderson,
Martin Scharlemann.

Geometry & Topology Publications
Mathematics Institute
University of Warwick
Coventry CV4 7AL, UK
Fax: +44-2476-524182
Email: gt@maths.warwick.ac.uk

## Archival Version

**These pages are not updated anymore.
They reflect the state of
.
For the current production of this journal, please refer to
http://msp.warwick.ac.uk/.
**