Seminars

Invited seminars

‘Malcev presentations for subsemigroups of groups’
Invited seminar: University of Glasgow, 13th October 2004.
‘Decidability and undecidability for automatic semigroups’
Invited seminar: University of Edinburgh & Heriot–Watt University (Joint), 15th November 2005.
‘Automatic presentations and semigroups’
Invited seminar: Centro de Álgebra da Universidade de Lisboa, 10th September 2010.
‘Hyperbolicity for semigroups’
Invited seminar: Centro de Álgebra da Universidade de Lisboa, 11th May 2012.
‘Automatic presentations for algebraic and combinatorial structures’
Invited seminar: Centro de Matemática da Universidade de Coimbra, 20th March 2013.
‘Plactic monoids and rewriting systems’
Invited seminar: Sultan Qaboos University, 23rd April 2013.
‘Automaticity, finite complete rewriting systems, and finite derivation type for homogeneous monoids’
Invited seminar: Centro de Matemática da Universidade do Porto, 17th January 2014.
‘Endomorphisms of semigroups: growth and interactions with subsemigroups’
Invited seminar: Centro de Álgebra da Universidade de Lisboa, 11th November 2014.
‘Plactic, hypoplactic, and sylvester monoids, and other homogeneous monoids’
Invited seminar: Centro de Matemática da Universidade de Coimbra, 25th February 2015.
‘Quasi-ribbons & quasi-crystals’
Invited seminar: Pure Mathematics Colloquium, University of St Andrews, 24th September 2015.
‘Crystals, tableaux, and the (hypo)plactic monoid’
Invited seminar: Uniwersytet Warszawski, Poland, 27th October 2016.
‘Combinatorics of cyclic shifts in the plactic, hypoplactic, sylvester, and related monoids’
Invited seminar: Uniwersytet Warszawski, Poland, 20th April 2017.

Other seminars

‘Certain properties of subsemigroups of free groups’
Seminar: University of St Andrews, 13th August 2003.
‘Automatic semigroups & Malcev presentations I’
Informal seminar: Friday Group, University of St Andrews, 26th March 2004.
‘Automatic semigroups & Malcev presentations II’
Informal seminar: Friday Group, University of St Andrews, 7th May 2004.
‘Malcev presentations’
Seminar: University of St Andrews, 17th June 2004.
‘Automaton semigroups’
Seminar: Pure Mathematics Colloquium, University of St Andrews, 29th May 2008.
‘Malcev presentations for subsemigroups of groups’
Seminar: Centro de Álgebra da Universidade de Lisboa, 31st October 2008.
‘Automatic presentations and semigroups’
Seminar: Centro de Matemática da Universidade do Porto, 25th September 2009.
‘Malcev presentations for subsemigroups of groups’
Seminar: Centro de Matemática da Universidade do Porto, 30th October 2009.
‘Unary FA-presentable algebraic and relational structures’
Seminar: Centro de Matemática da Universidade do Porto, 15th February 2012.
‘Plactic monoids, rewriting systems and biautomaticity’
Seminar: Centro de Matemática da Universidade do Porto, 26th October 2012.
‘Plactic monoids, rewriting systems, and automata’
Seminar: University of Canterbury, 23rd October 2013.
‘Automatic presentations for algebraic and relational structures’
Seminar: Centro de Matemática e Aplicações, Universidade Nova de Lisboa, 8th October 2014.
‘Crystals, Young tableaux, and the hypoplactic monoid’
Seminar: Centro de Matemática e Aplicações, Universidade Nova de Lisboa, 11th November 2015.
‘Markov semigroups’
Seminar: Centro de Matemática e Aplicações, Universidade Nova de Lisboa, 8th March 2016.
‘Rewriting systems and the plactic monoid’
Seminar: Centro de Matemática e Aplicações, Universidade Nova de Lisboa, 8th November 2016.