Chris Wensley's Home Page
Mail: Dr. C.D. Wensley,
School of Computer Science,
Bangor University,
Dean Street, Bangor,
Gwynedd LL57 1UT, UK.
Phone: 01248 382495
Email: c.d.wensley@bangor.ac.uk
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Bangor Links
Research interests
CHDA : Computational Higher-Dimensional Discrete Algebra -
particularly for crossed modules, cat1-groups and related structures:
see the Bangor website for share packages for
GAP.
Groebner bases and involutive bases in commutative and noncommutative rings:
with postgraduate student Gareth Evans (2002-2005),
whose thesis Noncommutative involutive bases is available at
evans.pdf,
and whose mathematics webpage is at:
http://www.dilan4.com/maths/index.htm.
Representation theory of the symmetric group; Burnside rings;
Combinatorial species; Polya enumeration.
Packages for GAP 4.4
(latest versions : October 2007)
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XMod:
crossed modules and cat1-groups,
latest version 2.12 (with Murat Alp),
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Gpd:
groupoids, group graphs and groupoid graphs,
latest version 1.05 (with Emma Moore),
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Kan:
double coset rewriting systems for fp-groups,
latest version 0.97 (with Anne Heyworth),
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IdRel:
ogged rewriting and identities among relators,
latest version 2.05 (with Anne Heyworth),
Talks
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talk on the CHDA packages at the GAP Authors' Workshop,
Braunschweig, September 2007.
Preprints/Publications
Local organiser for the
19th British Combinatorial Conference
which was held in Bangor from June 30th to July 4th, 2003.
Editor of the conference proceedings:
Surveys in Combinatorics,
ed. C.D.Wensley,
London Math. Soc. Lecture Note Series 307,
Cambridge Univ. Press, 2003.
Postgraduate supervision
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Gareth Evans, Ph.D.
Noncommutative involutive bases (2005)
ftp: pdf file:
evans.pdf
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Robert Rodrigues (2000-2001)
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Emma J. Moore, Ph.D. (with R.Brown)
Graphs of groups: word computations
and free crossed resolutions (2001)
ftp: gzipped postscript file:
moore.ps.gz
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Anne L. Heyworth, Ph.D. (with R.Brown)
Applications of Rewriting Systems and Groebner Bases
to Computing Kan Extensions and Identities Among Relations (1998)
ftp: gzipped postscript file:
heyworth.ps.gz
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Murat Alp, Ph.D. (with R.Brown)
GAP, crossed modules, cat1-groups (1997)
ftp: gzipped postscript file:
alp.ps.gz
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Abdul-Aali J. Mohammad, Ph.D.
Burnside rings of finite groups (1990)
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Neil H. Greig-Smith, M.Sc.
Invariant Theory (1974)
Modules taught during recent years:
2010-2011,
2009-2010,
2008-2009,
2007-2008,
2006-2007,
2005-2006,
2004-2005,
previous years.