conference, colloquium and seminar talks
2018

Classical and Quantum 3Manifold Topology, Monash University, Melbourne, Australia, 1721 December 2018.
 Title: TBA

Seminar Diskrete Geometrie, TU Berlin, 18 July 2018
 Title: What is the Thurston norm?

Growth in Topology and Number Theory, Hausdorff Center for Mathematics, Bonn, Germany, 913 July 2018.
 Title: Thurston norm via spunnormal surfaces

Geometry and Topology of 3manifolds, Okinawa Institute of Science and Technology, Japan, 2528 May 2018.
 Title: Structure of minimal triangulations

Pure Mathematics Seminar, University of Melbourne, 18 May 2018
 Title: Three angles on tropical geometry

Colloquium, University of Technology Sydney, 2 May 2018
 Title: Complexity of 3–manifolds

Colloquium, University of Adelaide, 23 March 2018
 Title: Complexity of 3–manifolds

Differential Geometry Seminar, University of Adelaide, 23 March 2018
 Title: Computing trisections of 4–manifolds
2017

SFB Colloquium, Discretization in Geometry and Dynamics, TU Berlin, 21 November 2017
 Title: Complexity of 3manifolds

DGD Days 2017, Keynote speaker, Akademiezentrum Raitenhaslach, Burghausen, Germany, 46 October 2017.
 Title: Computing trisections of 4–manifolds

Discrete Geometry Seminar, Freie Universität Berlin, Germany, 21 September 2017.
 Title: Computing trisections of 4–manifolds

Séminaire Géométrie, Dynamique et Topologie, Université d'AixMarseille I, France, 4 September 2017.
 Title: Computing trisections of 4–manifolds

6th Minisymposium on Computational Topology, Keynote speaker, University of Queensland, Australia, 47 July 2017.
 Title: Computing trisections of 4–manifolds

SFB Higher Invariants Seminar, Universität Regensburg, Germany, 13 January 2017.
 Title: Moduli spaces of projective structures on manifolds

Colloquium of the RTG Asymptotic Invariants and Limits of Groups and Spaces, Universität Heidelberg, Germany, 10 January 2017.
 Title: Moduli spaces of projective structures on manifolds
2016

LowDimensional Topology and Quantum Algebra, ANU, Australia, 31 October and 1 November 2016.
 Title 1: Why be happy when you could be normal?
 Title 2: Multisections of manifolds
 Geometry & Topology Seminar, University of Sydney, Australia, 5 October 2016
 Title: Multisections of Manifolds

Geometric Topology and Dynamics, First Joint Meeting BrazilItaly in Mathematics, Rio de Janeiro, Brazil, 31 August 2016.
 Title: Tessellating moduli spaces of strictly convex projective structures
 Algebra/Geometry/Topology Seminar, The University of Melbourne, Melbourne, Australia, 24 June 2016.
 Title: Deformations and limits of properly convex projective manifolds
 Topology Seminar, Monash University, Melbourne, Australia, 23 June 2016.
 Title: On a marked polytope for 2generator 1relator groups

Hyperbolic geometry and related topics, KIAS, Korea, 18 and 20 April 2016.
 Title: Multisections of manifolds I, II
2015

Analysis and Geometry in nonRiemannian spaces, University of New South Wales, Sydney, Australia, 3 November 2015.
 Title: Projective structures on manifolds

CURVE: Representations of 3manifold groups, geometric structures and exact computations, Institut de Mathématiques de Jussieu, Paris, France, 26 June 2015.
 Title: Tropical geometry, normal surfaces and the character variety

Geometry, groups and 3manifolds, Berkeley, USA, 22 May 2015.
 Title: Multisections of manifolds

 Seminaire Topologie, Institut Fourier, Grenoble, France, 16 January 2015
 Title: Thurston norm via Fox calculus
2014
 Seminaire Structures Géométriques, Institut de Mathématiques de Jussieu, Paris, France, 19 December 2014
 Title: Genus bounds for normal surfaces

Topology and Representation Theory at Kioloa, ANU Coastal Campus at Kioloa, Australia, 914 November 2014
 Title: Thurston norm via Fox calculus

Geometry on Groups and Spaces, KAIST, Daejeon, Korea, 8 August 2014
 Title: Thurston norm via Fox calculus
 Topology Seminar, Peking University, Beijing, China, 15 July 2014
 Title: Genus bounds for normal surfaces
 Sydney Algorithms and Computing Theory, School of IT, University of Sydney, Australia, 27 May 2014
 Title: Genus bounds for normal surfaces

Knot theory: Algorithms, complexity and computation, National Institute of Informatics, Shonan, Japan, 28 April 2014
 Title: Genus bounds for normal surfaces
 AnalysisGeometryTopology Seminar, University of Sydney, Australia, 24 July 2012
 Title: Normal Surfaces in 3Manifolds: Algorithms, Experiments and Questions
 Topology/Geometry Seminar, Max Planck Institut für Mathematik, Bonn, Germany, 3 February 2014
 Title: Normal Surfaces in 3Manifolds: Algorithms, Experiments and Questions
2013

Topology, Geometry and Group Theory, Informed by
Experiment, ICERM Brown University, USA, 23 October 2013
 Title: A new combinatorial class of triangulations

Annual Meeting of the Australian Mathematical
Society, Sydney, Australia, 3 October 2013
 Title: Computing closed essential surfaces in 3manifolds

AustralianJapanese Workshop on Real and Complex Singularities,
University of Sydney, Australia, 11 September 2013
 Title: Doing algebraic geometry with shapes of tetrahedra, volume and eigenvalues

Lowdimensional Topology and Geometry in Toulouse,
Université Paul Sabatier, Toulouse, France, 25 June 2013
 Title: Computing closed essential surfaces in 3manifolds
 AlgebraGeometryTopology Seminar, University of Melbourne, Australia, 22 February 2013
 Title: Combinatorics of Triangulations and Volume Optimisation
2012

GTA MiniWorkshop – Geometry and Topology,
University of Sydney, Australia, 10 December 2012
 Title: An algorithm to decide whether a 3manifold admits a hyperbolic structure of finite volume
 Geometry Seminar, University of Sydney, Australia, 24 July 2012
 Title: Finite volume projective manifolds II
 Group Actions Seminar, University of Sydney, Australia, 20 June 2012
 Title: Finite volume projective manifolds

Math Literature Seminar, Mathematical Sciences Center, Tsinghua University, China, 6 July 2012
 Title: Three angles on tropical geometry
 Algorithmic Discrete Mathematics Seminar, TU Darmstadt, Germany, 11 May 2012
 Title: Cross ratios, representations and valuations

Triangulations, Mathematisches Forschungsinstitut Oberwolfach, Germany, 4 May 2012
 Title: Structure of 0–efficient or minimal triangulations
 AlgebraGeometryTopology Seminar, University of Melbourne, Australia, 9 March 2012
 Title: Finite volume projective manifolds
2011
 Differential Geometry Seminar, University of Adelaide, Australia, 21 November 2011
 Title: Applications of tropical geometry to groups and manifolds
 Algebra, Combinatorics and Topology Seminar, University of Queensland, Australia, 4 October 2011
 Title: The Margulis lemma for properly convex projective manifolds

Groupvalued moment maps with applications to mathematics and physics,
University of Adelaide, Australia, 5 September 2011
 Title: Volume optimisation on triangulated 3manifolds

Faces of Geometry: 3Manifolds, Groups & Singularities,
Columbia University, New York, USA, 6 June 2011
 Title: The Margulis lemma for properly convex projective manifolds

CARMA Colloquium, University of Newcastle, Australia, 19 May 2011
 Title: What is the Thurston norm?
 Research Seminar, The University of Sydney, Australia, 25 February 2011
 Title: Algorithms for 3manifolds
 Low Dimensional Topology Seminar, Max Planck Institut für Mathematik, Bonn, Germany, 31 January 2011
 Title: Volume of Representations: Definition and Applications
 Oberseminar Geometrie, Topologie und Analysis, Universität zu
Köln, Germany, 28 January 2011
 Title: Volume optimisation on triangulated 3manifolds
 Topics in Topology, Max Planck Institut für Mathematik, Bonn, Germany, 24 January 2011
 Title: Volume optimisation on triangulated 3manifolds
 Oberseminar Analysis, Geometrie und Physik, Freie Universität Berlin, Germany, 18 January 2011
 Title: Volume optimisation on triangulated 3manifolds
2010
 Algorithmic Discrete Mathematics Seminar, TU Darmstadt, Germany,
20 December 2010
 Title: Algorithmen für 3Mannigfaltigkeiten

Annual Meeting of the Australian Mathematical
Society, Brisbane, Australia, 30 September 2010
 Title: Pseudodeveloping maps for ideal triangulations
 Algebra, Combinatorics and Topology Seminar, University of Queensland, Australia, 3 August 2010
 Title: Volume of representations

Topology And Geometry in Dimension Three, Oklahoma State University,
Stillwater, USA, 6 June 2010
 Title: Remarks on the deformation variety

Character Varieties in the Geometry and Topology of Lowdimensional Manifolds, BIRS,
Banff, Canada, 26 April 2010
 Title: Representations of closed 3manifold groups
 Algebra Seminar, University of Sydney, Australia, 9 April 2010
 Title: Volume of representations
 AlgebraGeometryTopology Seminar, University of Melbourne, Australia, 15 February 2010
 Title: Spinning, Straightening and the Recognition of Closed Hyperbolic 3Manifolds
 Algebra, Combinatorics and Topology Seminar, University of Queensland, Australia, 2 February 2010
 Title: Spinning, Straightening and the Recognition of Closed Hyperbolic 3Manifolds
2009

Tropical Structures in Geometry and Physics, MSRI, Berkeley, USA, 4 December 2009
 Title: The Hilbert geometry of the nsimplex

Annual Meeting of the Australian Mathematical Society, Adelaide, Australia, 30 September 2009
 Title: An extension of the BNS invariant using Morse theory
 Algebra and Combinatorics Seminar, University of Queensland, Australia, 18 August 2009
 Title: Bounds for the complexity of 3manifolds, Part 2

Joint Colloquium, University of Sydney and University of NSW, Australia, 14 August 2009
 Title: Complexity of 3manifolds
 Algebra and Combinatorics Seminar, University of Queensland, Australia, 11 August 2009
 Title: Bounds for the complexity of 3manifolds, Part 1

Workshop on 3manifolds, East China Normal University, Shanghai, China, 13 July 2009
 Title: Volume of representations
 Topology Seminar, University of California at Santa Barbara, USA, 28 April 2009
 Title: Bounds for the complexity of 3manifolds
2008
 Departmental Seminar, University of Queensland, Brisbane, Australia, 5 November 2008
 Title: Algorithmic geometry and topology

Victorian Algebra Conference, RMIT, Australia, 23 October 2008
 Title: A generalisation of the BNS invariant

Joint Colloquium, University of Sydney and University of NSW, Australia, 26 September 2008
 Title: What is the Thurston norm?
 Low dimensional topology seminar, UQAM, Montréal, Canada, 22 April 2008

Title: Minimal triangulations for an infinite family of lens spaces
 Topology Seminar, Oklahoma State University, Stillwater, USA, 10 April 2008

Title: Minimal triangulations for an infinite family of lens spaces
 Geometry and Topology Seminar, University of Oklahoma, Norman, USA, 9 April 2008

Title: Applications of tropical geometry to groups and manifolds
 Topology Seminar, University of California at Santa Barbara, USA, 2 April 2008

Title: Minimal triangulations for an infinite family of lens spaces
2007

Tropical Geometry, Mathematisches Forschungsinstitut Oberwolfach, Germany, 13 December 2007
 Title: Applications of tropical geometry to groups and manifolds

MSI Colloquium, ANU Canberra, Australia, 8 November 2007
 Title: Tropical geometry, group actions and 3manifolds

Annual Meeting of the Australian Mathematical Society, Melbourne, Australia, 28 September 2007
 Title: The Thurston norm via normal surfaces

3manifold geometry and topology, Warwick, England, 9 July 2007
 Title: The Thurston norm via normal surfaces

International Conference on Geometric Topology and Geometric Analysis, CMS, Zhejiang University, Hangzhou, China, 28 June 2007
 Title: Spunnormal surfaces and the boundary curve map

Geometric Topology Conference, Beijing, China, 18 June 2007
 Title: The Thurston norm via normal surfaces
 Topology/Geometry Seminar, Yale, USA, 26 April 2007
 Title: The Thurston norm via normal surfaces
 Geometry/Topology Seminar, Rutgers New Brunswick, USA, 17 April 2007
 Title: The Thurston norm via normal surfaces
 Geometry Seminar, Boston University, USA, 11 April 2007
 Title: Volume of representations
 Geometric Group Theory and Topology Seminar, Tufts University, Boston, USA, 10 April 2007
 Title: The Thurston norm via normal surfaces
 Topology Seminar, Oklahoma State University, Stillwater, USA, 8 March 2007
 Title: Normal surfaces and the Thurston norm
 Topology Seminar, Rice University, Houston, USA, 26 February 2007
 Title: Volume of representations
2006
 Topology/Geometry Seminar, Yale, USA, 16 November 2006
 Title: Volume of representations
 Geometry/Topology Seminar, Rutgers New Brunswick, USA, 14 November 2006
 Title: Volume of representations
 Geometry/Topology Seminar, The University of Melbourne, Australia, 9 October 2006
 Title: Volume of representations

Annual Meeting of the Australian Mathematical Society, Sydney, Australia, 29 September 2006
 Title: Volume of representations
 Oberseminar Topologie, Max Planck Institut, Bonn, Germany, 14 August 2006

Title: When ideal characters are tropical...

3manifolds after Perelman, Edinburgh, Scotland, 16 March 2006

Title: When ideal characters are tropical...
 Topology Seminar, UCSB, USA, 24 February 2006

Title: Angle structures and normal surfaces
 Seminaire CIRGET, UQAM, Montréal, Canada, 17 February 2006

Title: Angle structures and geometric splittings
 Manifolds at Melbourne, Melbourne, Australia, 17 January 2006

Title: Angle structures and geometric splittings
2005
 Geometric Topology Seminar, Columbia University, New York, USA, 7 October 2005
 Title: Angle structures and normal surfaces

Annual Meeting of the Canadian Mathematical Society, Waterloo, Canada, 46 June 2005

Title: Angle structures and geometric splittings
 Topology/Geometry Seminar, McMaster, Hamilton, Canada, 7 March 2005

Title: Normal surfaces, angle structures and the character variety
 Topology Seminar, Yale University, New Haven, USA, 24 February 2005

Title: Normal surfaces, angle structures and the character variety
 Topology Seminar, UT Austin, USA, 14 February 2005

Title: Normal surfaces, angle structures and the character variety
2004
 Geometry/Topology Seminar, SUNY Buffalo, USA, 29 October 2004

Title: A birationality result for character varieties
 Sectional Meeting of the American Mathematical Society, Nashville, USA, 16 October 2004

Title: A birationality result for character varieties
 CanadaFrance Meeting of Mathematics, Toulouse, France, 15 July 2004

Title: Normal surfaces, angle structures and the character variety
 Topology Seminar, University of California at Santa Barbara, USA, 21 May 2004

Title: Normal surfaces, angle structures and the character variety
 ThreeManifolds Seminar, University of Illinois at Chicago, USA, 3 March 2004

Title: Degeneration of hyperbolic structures and normal surfaces in 3manifolds
2003
 Seminaire CIRGET, UQAM, Montréal, Canada, 26 September 2003

Title: Degeneration of hyperbolic structures and normal surfaces in 3manifolds
 Conference on Topology, Mathematical Sciences Institute, Canberra, Australia, 24 July 2003

Title: Boundary slopes and the logarithmic limit set
2001
 Poincaré Seminar, Rutgers University, Newark, New Jersey, USA, 31 October 2001

Title: On Deformations of hyperbolic structures and normal surface theory
 Geometric Topology Seminar, Columbia University, New York, USA, 19 October 2001

Title: On Deformations of hyperbolic structures and normal surface theory
 Albany Group Theory Conference, New York, USA, 14 October 2001

Title: Deformations of hyperbolic structures and normal surface theory
 Annual Meeting of the Australian Mathematical Society, Canberra, Australia, 24 September 2001

Title: Deformations of hyperbolic structures and normal surface theory
2000
 Geometric Topology Seminar, Columbia University, New York, USA, 24 March 2000

Title: On the KinoshitaTerasaka knot and generalised Conway mutation
1999
 Algebra and Topology Seminar, The University of Melbourne, Australia, September 1999
 Title: On the KinoshitaTerasaka knot and generalised Conway mutation
 CMA National Research Symposium on Algebraic Geometry and Applications, Canberra, Australia, 20 July 1999
 Title: On character varieties of mutative 3manifolds