Heriot-Watt Semigroup Day
  Friday 13th June 2008

Venue: Colin Maclaurin Building, Heriot-Watt University, Room T01 (top floor).




Time
Speaker
Title
1.00 to 1.50
Brent Everitt,
York
Partial symmetry, reflection monoids and Coxeter groups
2.00 to 2.50
Robin Cockett,
Calgary
Reversible computation and inverse categories
3.00 to 3.50
Peter Hines,
York
Quantum logic and inverse semigroups
4.00 to 4.25
Rebecca Noonan Heale,
Heriot-Watt
Graph expansions of semigroups
4.30 to 4.55
Mark V Lawson,
Heriot-Watt
A short talk on a small result: the wide inverse submonoids of the polycyclic inverse monoids


Participants:  Bassima Afara (HW), Colin Campbell (St Andrews), Robin Cockett (Calgary), Andreas Distler (St Andrews), Erzsi Dombi (Glasgow), Jeff Eggen (Edinburgh), Brent Everitt (York),  John Fountain (York), Nick Gilbert (HW), Miles Gould (Glasgow), Bob Gray (St Andrews), Peter Hines (York), Claire Hunter (York), Dave Jones (HW), Mark Kambites (Manchester), Mark V Lawson (HW), Victor Maltsev (St Andrews), Elizabeth Miller (HW), Yohei Negi (St Andrews), Rebecca Noonan Heale (HW), Martyn Quick (St Andrews), Nic Ruskuc (St Andrews), Lubna Shaheen (York), Suha Wazzan (HW).



Heriot-Watt Semigroup Day
Thursday 12th July 2007

Venue: Colin Maclaurin Building, Heriot-Watt University, Room T01 (top floor).




Time
Speaker
Title
1.00 to 1.50
Mark V Lawson
Heriot-Watt
 A correspondence between a class of monoids and self-similar group actions
2.00 to 2.50
John Fountain
York
Unique factorisation in non-commutative monoids
3.00 to 3.50
Filipa Almeida
Lisbon
Tiling semigroups: two results plus epsilon
4.00 to 4.50
Victor Maltsev
St. Andrews
Brauer-type semigroups: geometric and combinatorial approaches


Participants: B. Afara (HW), F. S. Almeida (Lisbon),  A. J. Cain  (St. Andrews),  J. Fountain (York), N. Gilbert (HW),  M. Hartmann (Szeged),  R. N. Heale  (HW),
C. Hollings (York), D. Jones (HW) , M. Kambites (Manchester), M. V. Lawson (HW), V. Maltsev (St Andrews), E. Miller (HW), D. Munn (Glasgow), M. Samman (King Fahd), L. Shaheen (York), S. Wazzan (HW).


Heriot-Watt Semigroup Day
  Wednesday 5th July 2006

Venue: Colin Maclaurin Building, Heriot-Watt University, Room T01 (top floor).




Time
Speaker
Title
11.00 to 11.50
Nick Gilbert
Heriot-Watt
 HNN extensions: variations on a theme
12.00 to 12.50
Sarah Rees
Newcastle
Group geodesics: regularity, star-freedom and local testability
2.00 to 2.50
Stuart Margolis
Bar Ilan
Representation theory of finite semigroups, semigroup radicals, and formal languages
3.00 to 3.50
Alan Cain
St. Andrews
Cancellative and Malcev presentations for subsemigroups and extensions
4.00 to 4.30
Mark V Lawson
Heriot-Watt
The structure of a class of left cancellative right hereditary monoids


Participants: B. Afara (HW),  A. J. Cain  (St. Andrews),  S. Donkin (York), J. Fountain (York), N. Gilbert (HW),  V. Gould (York), R. Gray (Leeds),  C. Hollings (York), J. Howie (HW),  M. Kambites (Manchester), M. V. Lawson (HW), S. Margolis (Bar Ilan), E. Miller (HW), D. Munn (Glasgow), S. Pride (Glasgow),  S. Rees (Newcastle), N. Ruskuc (St. Andrews), M. Samman (King Fahd), S. Wazzan (HW).