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NBSAN is a network of researchers in Scotland and Northern England with
interests in semigroup theory and its applications. It is funded chiefly by grants
from the London
Mathematical Society
and Edinburgh Mathematical Society, and organises around three
meetings per year in different locations around the region.
The main participant universities are
Heriot-Watt,
Manchester,
St Andrews
and York, but our
activities are open to all interested researchers and we especially welcome
participation by graduate students. |
Next Meeting
The next NBSAN meeting will
The next NBSAN meeting will be held at the University of St Andrews
on
Thursday 19th and Friday 20th May 2011. All talks will be
in Theatre B of the Mathematics Institute. A provisional
schedule is as follows:
Thursday 19th May
| 13:30 | John Fountain (York) - An inverse monoid approach to Thompson's group V and generalisations |
| 14:30 | Alistair Wallis (Heriot Watt) - Rees monoids, self-similar groups and fractals |
| 15:00 | Coffee and Proving Theorems |
| 15:30 | Andrew Duncan (Newcastle) - Rewriting systems and the geodesic problem for words and cycles |
| 16:30 | Si Craik (St Andrews) - Ends of semigroups |
| 17:00 | Close |
Friday 20th May
| 09:15 | Mark Kambites (Manchester) - An Introduction to Tropical Matrix Semigroups |
| 10:15 | Coffee and Proving Theorems |
| 10:45 | Alan Cain (Porto) - Hyperbolic and word-hyperbolic semigroups |
| 11:45 | Lunch |
| 12:45 | Dave Jones (Heriot Watt) - Graph Inverse Semigroups |
| 13:15 | Marianne Johnson (Manchester) - Green's J-order and the rank of tropical matrices |
| 14:15 | Close |
There are limited funds available to support the attendance costs of UK-based
graduate students; if you are interested in claiming then please contact
Mark Kambites in advance with an estimate of your
costs. For all other enquiries about the St Andrews meeting please contact
James Mitchell.
Future Events
The Autumn NBSAN meetings will provisionally be held in York on 23rd
November 2011. Further details will be available
here nearer the time.
Other forthcoming (non-NBSAN) conferences which might be of interest include....
To receive announcements of future NBSAN events, please enter
your name and email address below and click "Subscribe". Alternatively,
you can email Mark Kambites.
Past Meetings
The seventh NBSAN meeting was held at the University of York on
Wednesday 24th November 2010. the speakers were:
The sixth NBSAN meeting was held at the University of Manchester on
Monday 26th July 2010. The speakers were:
| Zur Izhakian (Bar Ilan) - Supertropical algebra |
| Erzsi Dombi (Glasgow) - Automatic semigroup acts |
| Rick Thomas (Leicester) - FA-presentable semigroups |
The fifth NBSAN meeting was held at the University of St Andrews on
Friday 7th and Saturday 8th May 2010, organised by James Mitchell.
Speakers were:
| Andreas Distler (St Andrews) - How to store 10 semigroups in a bit |
| James East (Sydney) - Generators and relations for monoids of block bijections and partitions |
| Attila Egri-Nagy (Hertfordshire) - Coordinatizing finite permutation groups and transformations semigroups - computational considerations |
| Victoria Gould (York) - Bisimple inverse semigroups as semigroups of quotients |
| Zsofia Juhasz (Essex) - The smallest operation-compatible quasiorders containing Green's quasiorders |
| Zak Mesyan (Ben Gurion) - Conjugation of injections by permutations |
| Markus Pfeiffer (St Andrews) - Semigroups with easily solveable word problem |
| Steve Pride (Glasgow) - On diagram groups |
| Abdullahi Umar (Sultan Qaboos) - Some combinatorial properties of semigroups of partial transformations |
The fourth NBSAN meeting was held at the University of York on
Wednesday 25th November 2009, organised by Victoria Gould. Speakers were:
The third NBSAN meeting was held on
23rd July 2009 at Heriot-Watt University in
Edinburgh, organised by Mark Lawson.
The speakers were:
The second NBSAN meeting was held in St Andrews on 16th and 17th April 2009.
The speakers were:
The inaugural NBSAN meeting was held in York on 28th January 2009, and was
dedicated to the memory of Professor Douglas Munn (1929-2008).
The speakers were:
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