All talks & 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.
‘Malcev presentations’
Conference talk: Postgraduate Pure Mathematics in the North East 2004, University of Newcastle, 28th June 2004.
‘Malcev presentations for subsemigroups of groups’
Invited seminar: University of Glasgow, 13th October 2004.
‘A survey of Malcev presentations for subsemigroups of groups’
Conference talk: Groups St Andrews 2005, University of St Andrews, 31st July 2005.
‘Decidability and undecidability for automatic semigroups’
Invited seminar: University of Edinburgh & Heriot–Watt University (Joint), 15th November 2005.
‘An introduction to decidability for automatic semigroups’
Short course: University of St Andrews, 28th November–12th December 2005.
‘Cancellative and Malcev presentations for subsemigroups and extensions’
Conference talk: Semigroup Day ’06, Heriot–Watt University, 5th July 2006.
‘Decidability for automatic semigroups’
Conference talk: International Workshop on Computational and Algorithmic Aspects of Semigroup Theory, University of St Andrews, 6th September 2006.
‘Automatic presentations for cancellative semigroups’
Conference talk: 2nd International Conference on Language and Automata Theory and Applications, Universitat Rovira i Virgili, Tarragona, Spain, 18th March 2008.
‘Automatic presentations for semigroups’
Conference talk: 2008 British Mathematical Colloquium, University of York, 27th March 2008.
‘Automaton semigroups’
Seminar: Pure Mathematics Colloquium, University of St Andrews, 29th May 2008.
‘Automatic semigroups’
Short course: Centro de Álgebra da Universidade de Lisboa, 22nd–29th October 2008.
‘Malcev presentations for subsemigroups of groups’
Seminar: Centro de Álgebra da Universidade de Lisboa, 31st October 2008.
‘Automaton semigroups’
Invited conference talk: North Britain Semigroups and Applications Network, University of St Andrews, 16th April 2009.
‘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.
‘Computing with automatic semigroups’
Conference talk: Centro de Matemática da Universidade do Porto, 15th June 2010.
‘Automatic presentations and semigroups’
Invited seminar: Centro de Álgebra da Universidade de Lisboa, 10th September 2010.
‘Hyperbolic and word-hyperbolic semigroups’
Invited conference talk: North Britain Semigroups and Applications Network, University of St Andrews, 19th May 2010.
‘Unary FA-presentable algebraic and relational structures’
Seminar: Centro de Matemática da Universidade do Porto, 15th February 2012.
‘Hyperbolicity for semigroups’
Invited seminar: Centro de Álgebra da Universidade de Lisboa, 11th May 2012.
‘Plactic monoids, rewriting systems and biautomaticity’
Seminar: Centro de Matemática da Universidade do Porto, 26th October 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.
‘Unary FA-presentable algebraic and combinatorial structures’
Invited conference talk: Workshop on Algebraic Structures and Semigroups, Centro de Álgebra da Universidade de Lisboa, 5th July 2013.
‘Plactic monoids, rewriting systems, and automata’
Seminar: University of Canterbury, 23rd October 2013.
‘Endomorphisms of semigroups: growth and interactions with subsemigroups’
Invited conference talk: North Britain Semigroups and Applications Network, University of York, 20th November 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.
‘Computing with automatic and word-hyperbolic semigroups’
Invited conference talk: Workshop on Computational Algebra, Centro de Álgebra da Universidade de Lisboa, 22nd July 2014.
‘Automatic presentations for algebraic and relational structures’
Seminar: Centro de Matemática e Aplicações, Universidade Nova de Lisboa, 8th October 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.
‘Computation and conjugacy in hypoplactic and sylvester monoids and other homogenous monoids’
Invited conference talk: North Britain Semigroups and Applications Network, University of St Andrews, 25th April 2015.
‘Crystal bases, finite convergent presentations, and automaticity for plactic monoids’
Invited conference talk: International meeting of the American Mathematical Society, European Mathematical Society, and Sociedade Portuguesa de Matemática: Special Session on Algebraic Theory of Semigroups and Applications, University of Porto, 11th June 2015.
‘Quasi-ribbons & quasi-crystals’
Invited seminar: Pure Mathematics Colloquium, University of St Andrews, 24th September 2015.
‘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.
‘Combinatorics of cyclic shifts in the plactic, hypoplactic, sylvester, and related monoids’
Conference talk: International Conference on Semigroups and Automata 2016, Universidade de Lisboa, 24th June 2016.
‘Combinatorics of cyclic shifts in the plactic, hypoplactic, sylvester, and related monoids’
Conference talk: National meeting of the Sociedade Portuguesa de Matemática, Instituto Politécnico de Setúbal, 11th July 2016.
‘Combinatorial and computational properties of the sylvester monoid’
Invited conference talk: 6th Iberian Mathematical Meeting, University of Santiago de Compostela, 6th October 2016.
‘Crystals, tableaux, and the (hypo)plactic monoid’
Invited seminar: Uniwersytet Warszawski, Poland, 27th October 2016.
‘Rewriting systems and the plactic monoid’
Seminar: Centro de Matemática e Aplicações, Universidade Nova de Lisboa, 8th November 2016.
‘Simplicity and the aesthetics of mathematics’
Invited conference talk: Third Lisbon International Conference on Philosophy of Science, 14th December 2016.
‘Combinatorics of cyclic shifts in the plactic, hypoplactic, sylvester, and related monoids’
Invited seminar: Uniwersytet Warszawski, Poland, 20th April 2017.
‘Identities in plactic, hypoplactic, sylvester, Baxter, and related monoids’
Invited conference talk: 7th Combinatorics Day, Universidade de Évora, 26th May 2017.
‘Notions of simplicity and automated reasoning’
Conference talk: Simplicity of Proofs in Automated Reasoning, 6th July 2017.
‘Combinatorics of cyclic shifts in the plactic, hypoplactic, sylvester, and related monoids’
Conference talk: 11th International Conference on Words, Université du Québec à Montréal, Canada, 14th September 2017.