This page lists talks given in the years 2010 to 2017 at the Pure Mathematics Colloquium of the Pure Mathematics Research Centre (PMRC) at Queen’s University Belfast.
Colloquium Talks 2010
Colloquium Talks 2011
11 February 2011  Imre Leader  University of Cambridge  Lion and Man 
18 February 2011  Anthony Wickstead  Queen’s University of Belfast  Separable Banach lattices on which every bounded linear operator is regular 
25 February 2011  John Hunton  University of Leicester  What is an attractive shape? 
4 March 2011  Martin Mathieu  Queen’s University of Belfast  A new formula for the local multiplier algebra 
11 March 2011  Lina Oliveira  Instituto Superior Tecnico, Lisbon  On norm closed Lie ideals of nest algebras 
18 March 2011  Joachim Zacharias  University of Nottingham  On groups with the invariant translation approximation property 
25 March 2011  Karin Erdmann  University of Oxford  Complexity for modules of finitedimensional algebras 
1 April 2011  Adrian Wadsworth  University of California, San Diego  SK_1 of finitedimensional division algebras 
8 April 2011  Mihalis Anoussis  University of the Aegean  Angles in C*Algebras 
15 April 2011  Mark Wildon  Royal Holloway, University of London  Commuting conjugacy classes in finite groups 
13 May 2011  Radha Kessar  University of Aberdeen  Finiteness questions in modular representation theory of finite groups 
7 October 2011  Tony Dorlas  DIAS, Dublin  Quantum channels for classical information and the strong converse 
14 October 2011  Natalia Iyudu  Queen’s University Belfast  The Anick conjecture on the minimal Hilbert series of quadratic algebras 
21 October 2011  Alexander Premet  University of Manchester  On the GelfandKirillov conjecture for simple Lie algebras 
28 October 2011  Andrey Lazarev  University of Leicester  MaurerCartan equation and rational homotopy theory 
4 November 2011  Savvas Papapanayides  Queen’s University of Belfast  Reflexivity of subspace lattices, property (p) and the ultraweak rank one density property 
11 November 2011  Dirk Schuetz  University of Durham  Configuration spaces of closed linkages 
18 November 2011  Richard Timoney  Trinity College Dublin  Embeddings in B(H) of ideals and tensor products of JC*triples 
25 November 2011  Thomas Huettemann  Queen’s University of Belfast  Finite domination of chain complexes 
2 December 2011  Andreas Winter  University of Bristol  Zeroerror communication via quantum channels, noncommutative graphs and a quantum Lovasz number 
9 December 2011  Yuri Melnikov  Brussels  Spectral analysis for a class of integraldifference operators 
9 December 2011 at 4 pm in DBB/01/006 
Yuri Melnikov  Brussels  EU funding for advanced research and international cooperation 
16 December 2011  Madeeha Khalid  DCU  K3 surfaces and matrix algebras 
Colloquium Talks 2012
3 February 2012  Stanislav Shkarin  Queen’s University Belfast  Chaotic Banach algebras 
10 February 2012  Alina Vdovina  Newcastle University  Cocompact actions on buildings and applications 
17 February 2012  Dimitry Rumynin  University of Warwick  Finite Gsets and finite Walgebras 
24 February 2012  Mercedes Siles  University of Malaga  The Taste of Mathematics 
2 March 2012  Stuart McKenzie  Queen’s University Belfast  An analogue of Palmer’s theorem on Banach lattices 
8 March 2012 at 4 pm  Colm Mulcahy  Spelman College, Atlanta  Celebration of Mind: The Mathematics, Magic and Mystery of Martin Gardner 
9 March 2012  Chris Boyd  University College Dublin  Isometries of weighted spaces of holomorphic functions 
16 March 2012  Stefan Kolb  Newcastle University  Coideal subalgebras of quantum groups 
23 March 2012  Grigori Garkusha  University of Swansea  Kmotives of algebraic varieties 
4 May 2012  Natalia Iyudu  Queen’s University Belfast  On the Ktheory of graph C*algebras 
11 May 2012  YingFen Lin  National Dong Hwa University, Taiwan  Completely bounded disjointness preserving operators on the Fourier algebra 
5 October 2012  Shahn Majid  Queen Mary University of London  Duality for bicovariant differentials on quantum groups 
12 October 2012  Vern Paulsen  Houston University  The KadisonSinger Problem 
19 October 2012  Matt Daws  Leeds University  Compact quantum groups from semigroups 
26 October 2012  Vladimir Dotsenko  Trinity College Dublin  A gentle introduction to shuffle operads 
2 November 2012  Stanislav Shkarin  Queen’s University Belfast  Orbits of coanalytic Toeplitz operators 
9 November 2012 at 3 pm in DBB/02/006 
Uli Kraehmer  Glasgow University  Homological algebra and monoidal categories 
16 November 2012  Arnfinn Laudal  University of Oslo  Moduli of representations of associative algebras. Applications to YoungMills theory and Gauge theory 
23 November 2012  Tom Brady  Dublin City University  Noncrossing partitions and Milnor fibres of braid arrangements 
30 November 2012  Thomas Huettemann  Queen’s University Belfast  A strictly combinatorial approach to the algebraic Ktheory of projective spaces 
7 December 2012 at 2 pm and at 3.30 pm 
Andrew Ranicki Samuel James Patterson 
Edinburgh University Goettingen University 
Cobordism of manifolds with boundary Towards understanding the Kummer phenomenon 
14 December 2012  Rupert Levene  University College Dublin  Idempotent Schur multipliers: mind the gaps 
Colloquium Talks 2013
1 February 2013  David Barnes  Queen’s University Belfast  Rational Gequivariant Cohomology Theories 
8 February 2013  Richard Hepworth  Aberdeen University  Operations and Configurations 
15 February 2013  James Griffin  Glasgow University  Cactus products 
22 February 2013  Dennis Borisov  Oxford University  Higher dimensional operads 
1 March 2013  Stanislav Shkarin  Queen’s University Belfast  Pauli states 
8 March 2013  ZinaidaÂ Lykova  Newcastle University  Amenability ofÂ Banach and C*algebras 
15 March 2013  Stanislav Shkarin  Queen’s University Belfast  On numerical orbits 
22 March 2013  Natalia Iyudu  Queen’s University Belfast  Conformal Lie and GelfandDorfman operads 
19 April 2013  Gleb Gribakin  Queen’s University Belfast  Scattering lengths in cold atom collisions 
26 April 2013  MyrtoÂ Manolaki  University College Dublin  Universal Taylor series 
3 May 2013  Consuelo Martinez  Universidad de Oviedo  Around the ChengKac superalgebra 
10 May 2013 at 2 pm and 10 May 2013 at 3.30 pm 
LeonidÂ Parnovski
Vladimir Troitsky 
University College London
University of Alberta 
cancelled
Invariant ideals of positive operators on Banach lattices 
14 May 2013 at 2 pm in DBB.02.026 
David Kribs  University of Guelph, Ontario  Quantum Information via Subsystems 
17 May 2013  DimitriÂ Gurevich  Universitďż˝ de Valenciennes  cancelled 
4 October 2013  Stuart White  University of Glasgow  Regularity properties for nuclear C*algebras 
11 October 2013  Martin Mathieu  Queen’s University Belfast  Interplay between spectrally bounded operators and complex analysis 
18 October 2013  Stephen Theriault  University of Southampton  Decompositions in homotopy theory 
25 October 2013  YingFen Lin  Queen’s University Belfast  Group C*algebras and examples on exponential Lie groups 
1 November 2013  Jukka Kauppi  University of Oulu  A generalization of a theorem of Stone and Kadison for ordered algebras with an order unit 
8 November 2013 NBFA Seminar at 3 pm in DBB.0G.005 

15 November 2013  Thomas Vidick  Issac Newton Institute  Noncommutative Grothendieck inequalities and application to quantumÂ twoplayer games 
22 November 2013  Oliver Mason  Hamilton Institute of NUIM  The Markov Chain Tree Theorem, Analytic Hierarchy Process and the Max Algebra 
29 November 2013  Jorge Bruno  NUI Galway  A metric approach to topology 
6 December 2013  Marten Wortel  University of Kent  Hilbert’s metric and its isometries 
Colloquium Talks 2014
7 February 2014  Lei Li  Nankai University  The nonvanishing preservers on function spaces 
14 February 2014  Thomas Huettemann  Queen’s University Belfast  Remarks on topological and algebraic finiteness conditions 
21 February 2014  Andy Baker  University of Glasgow  Polynomial Hopf algebras in Algebra andTopology 
28 February 2014  Rosona Eldred  Universitďż˝t Hamburg  Alwayscartesian cubes and wrongway maps 
7 March 2014  Linda Mawhinney  Queen’s University Belfast  C*algebras of real rank zero are exchange rings 
14 March 2014  Bas Lemmens  University of Kent  From hyperbolic geometry to nonlinear PerronFrobenius theory 
21 March 2014  Stephen Power  Lancaster University  The rigidity of infinite graphs and crystals 
28 March 2014  David Barnes  Queen’s University Belfast  Postnikov Towers and Functor Calculus 
2 May 2014  Matthew Young  Queen’s University Belfast  Isometries Vs. Spectral Isometries 
9 May 2014  Constanze Roitzheim  University of Kent  Model categories – the joy of abstract nonsense 
3 October 2014  Andrew Lobb  University of Durham  Knot theory: Euler characteristic to homology to homotopy 
10 October 2014  Alex Fink  Queen Mary University of London  Varieties and cycles in tropical geometry 
17 October 2014  David Barnes  Queen’s University Belfast  The DoldKan correspondence and its implications 
31 October 2014  Ben de Pagter  Delft University of Technology  Translation invariant Banach function spaces 
7 November 2014  Anthony Wickstead  Queen’s University Belfast  Norms of basic elementary operators on algebras of regular operators 
14 November 2014  Sarah Whitehouse  University of Sheffield  Binomial rings in topology 
21 November 2014  Simon Wasserman  University of Glasgow  The regular C*algebra of a finite product of free groups 
4 December 2014 at 4 pm  Nigel Higson  Penn State University  Contractions of Lie Groups and Representation Theory 
5 December 2014  Rupert Levene  University College Dublin  Hyperreflexivity and idempotent Schur multipliers 
Colloquium Talks 2015
6 February 2015  Fionntan Roukema  University of Sheffield  An audience led guided tour through the world of 3manifolds 
13 February 2015  Evgenios Kakariadis  University of Newcastle  Semigroup actions on operator algebras 
20 February 2015  Mike Rigby  Queen Mary University London  Iteration of holomorphic maps in infinite dimension 
27 February 2015  Xin Li  Queen Mary University of London  Cartan subalgebras in C*algebras and continuous orbit equivalence 
6 March 2015  Aaron Tikusis  University of Aberdeen  C*algebras, classification, and regularity 
13 March 2015  Mark Roelands  University of Kent  Unique geodesics and embeddings of cones 
20 March 2015  Stanislav Shkarin  Queen’s University Belfast  Periodicity Conjecture of Kontsevich 
24 April 2015  Ivan Todorov  Queen’s University Belfast  Quantum chromatic numbers of graphs 
1 May 2015  Yemon Choi  University of Lancaster  The ZLamenability constant of a finite group 
9 October 2015  Anthony Wickstead  Queen’s University of Belfast  Tensor products of falgebras 
14 October 2015  Alex Monras  Universitat Autonoma de Barcelona  Quantum learning of classical stochastic processes 
14 October 2015  Nadish de Silva  University of Oxford  Contextuality and Noncommutative Geometry in Quantum Mechanics 
16 October 2015  Giannicola Scarpa  Universitat Autonoma de Barcelona  Belief Invariance: Nonsignalling Equilibria in Games with Conflicting Interest 
23 October 2015  Jean Ludwig  Universite de Lorraine  Spectral synthesis properties of points in the dual of a nilpotent Lie group 
30 October 2015  Stephen Wills  University College Cork  Construction of quantum Stochastic cocycles 
6 November 2015  Claus Koestler  University College Cork  Taming wild groups with invariance principles 
13 November 2015  Derek Kitson  University of Lancaster  Geometric rigidity in normed spaces 
20 November 2015  Jason Crann  Carleton University, Canada  Homological manifestations of amenability 
27 November 2015  Jim Howie  Heriot Watt University  Weight of groups and knot surgery 
11 December 2015  Pedrov Boavida  UC Louvain / University of Lisbon  Smooth embeddings and the little discs operad 
Colloquium Talks 2016
5 February 2016  David PerezGarcia  Universidad Complutense de Madrid  Undecidability of the spectral gap 
19 February 2016  Luke Steers  Queen’s University Belfast  Finite domination, Novikov homology and Zgraded rings 
26 February 2016  Christopher Braun  University of Lancaster  Derived localisation 
4 March 2016  Adam Skalski  Polish Academy of Science  Fixed points of completely contractive maps and convolution operators on classical/quantum groups 
11 March 2016  Jonathan Bennett  University of Birmingham  Control of Fourier multipliers by maximal operators 
15 April 2016  Ana Belen Sainz  University of Bristol  Contextuality and nonlocality: a unifying framework 
22 April 2016  Martin Crossley  University of Swansea  Operations in Ktheory, completions, and discrete modules 
29 April 2016  Mihalis Anoussis  University of the Aegean  Multiplication operators and topological radicals 
6 May 2016  Michael Ruzhansky  Imperial College London  Multiplier theorems on groups 
13 May 2016  David McConnell  University of Glasgow  A StoneCech Theorem for C*bundles 
15 June 2016  Jean Renault  University of Orleans, France  Semigroups and higher rank graphs 
7 October 2016  Laura Mancinska  University of Bristol  Oddities of Quantum colorings 
14 October 2016  Dan Pryor  Queen’s University Belfast  Topological Manifold Calculus 
21 October 2016  Michael Whittaker  University of Glasgow  New directions in selfsimilar group theory 
28 October 2016  Peter Kropholler  University of Southampton  Soluble Groups and Random Walks 
4 November 2016  Mihalis Anoussis  University of the Aegean  On ergodicÂ properties of random walks on motion groups 
11 November 2016  Ping Zhong  University of Lancaster  Quasifree Quantum Stochastic Calculus and Quantum Random Walks 
18 November 2016 (cancelled)  Alexander Pushnitski  Kingâ€™s College London  Rational approximation of functions with singularities 
25 November 2016  Nigel Ray  University of Manchester  Configuration spaces and the octonions; living without associativity 
2 December 2016  Natalia Iyudu  University of Edinburgh  Sklyanin algebras via Groebner bases 
Colloquium Talks 2017
Date  Speaker  Institution  Title  
Friday 10 February 2017  Martino Lupini  Caltech  Noncommutative simplices  
Friday 17 February 2017  Sarah Rees  University of Newcastle  Rewriting in Artin groups  
Friday 24 February 2017  Anthony Wickstead  Queen’s University Belfast  Infinite Riesz decompositions 

Friday 3 March 2017  Rupert Levene  University College Dublin  Weighted shift directed graph operator algebras  
Friday 10 March 2017  David Barnes  Queen’s University Belfast  Monoidal algebraic models for rational S1 equivariant ring spectra 

Friday 24 March 2017  Simona Paoli  University of Leicester  Higher structures in homotopy theory and category theory  
Friday 31 March 2017  Charles Batty  University of Oxford  Holomorphic functions which preserve holomorphic semigroups  
Friday 7 April 2017  Iva Halacheva  University of Lancaster  Higher SchurWeyl duality for the periplectic Lie superalgebra p(n)  
Friday 5 May 2017  Ken Davidson  University of Waterloo  Choquet order and hyperrigidity for function systems 

Friday 12 May 2017  Roozbeh Hazrat  University of Western Sydney  Leavitt path algebras  
Friday 13 October 2017  Leo Creedon  Institute of Technology Sligo  Finite Group Algebras, Unit Groups and Coding Theory 

Friday 20 October 2017  Danny Sugrue  Queen’s University Belfast  Rational Mackey functors of profinite groups  
Friday 27 October 2017  Rupert Levene  University College Dublin  Complexity and capacity bounds for quantum channels 

Friday 3 November 2017  David Barnes  Queen’s University Belfast  Equivariant cohomology theories and their multiplication 

Friday 10 November 2017  Alexander Pushnitski  King’s College London  Rational approximation of functions with singularities 

Friday 17 November 2017  Stephen Weis  Centre for Quantum Information and Communication, Ecole Polytechnique, Bruxelles  On stable convex sets  
Friday 24 November 2017  Florian Pausinger  Queen’s University Belfast  Persistent Homology and its use in digital image analysis 

Friday 1 December 2017  Martin Mathieu  Queen’s University Belfast  Sheaves of operator modules  
Friday 8 December 2017  Martin Mathieu  Queen’s University Belfast  Sheaves of operator modules – part 2  