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Travel and talks

7^th-11^th July 2025 - Workshop on Homotopy Theory, Fields Institute, Toronto.

8^th-13^th June 2025 - Polylogarithms, homology of linear groups, and Steinberg modules, Les Diablerets.

28^th November 2024 - Seminar, Sheffield.

19^th-24^th August 2024 - Topology of moduli spaces, Copenhagen.

21^st-26^th July 2024 - Topologie, Oberwolfach.

15^th-19^th April 2024 - Columbia University, New York.

8^th-12^th April 2024 - Namboodiri Lectures in Geometry and Topology, Chicago. (Lecture 1, Lecture 2, Lecture 3)

25^th-28^th March 2024 - Conference, Muenster. (Video)

4^th-8^th December 2023 - Pontificia Universidad Católica de Chile, Santiago.

26^th November-1^st December 2023 - Spaces of manifolds: algebraic and geometric approaches, Banff.

17^th November 2023 - LMS Annual General Meeting and Presidential Address, London.

30^th October-2^nd November 2023 - Copenhagen.

24^th October 2023 - KCL Geometry Seminar, London.

13^th October 2023 - Scottish topology seminar, Glasgow.

4^th-6^th October 2023 - Panorama of Mathematics II, Bonn. (Slides)

20^th-22^nd September 2023 - Centenaire de René Thom, IHÉS. (Video)

6^th-12^th August 2023 - Homotopy Theory, Oberwolfach.

15^th-17^th May 2023 - Homology of Configuration Spaces and related topics, Paris.

22^nd March 2023 - UCL geometry seminar, London.

15^th March 2023 - Seminario de topología algebraica y geométrica, Mexico (online).

25^th November 2022 - YMSC Colloquium, Beijing (online). (Slides)

3^rd-4^th October 2022 - Ib Fest, Copenhagen.

26^th-30^th September 2022 - Clay research conference, Oxford.

12^th-16^th September 2022 - DMV-Jahrestagung, Berlin. (Slides)

24^th-30^th July 2022 - Topologie, Oberwolfach.

6^th-14^th July 2022 - ICM, at satellite event in Copenhagen. (Video, Slides)

27^th-30^th June 2022 - Homotopy Theory with Applications to Arithmetic and Geometry, Bonn. (Video)

27^th May 2022 - Colloquium, Southampton.

16^th May 2022 - COGENT Seminar, online.

2^nd May 2022 - Topology seminar, Melbourne/online.

13^th April 2022 - Colloquium, Princeton/online. (Slides)

7^th February 2022 - Johnson homomorphisms and related topics, online.

10^th January-12^th February 2022 - Higher algebraic structures in algebra, topology and geometry, Stockholm. (Video)

4^th-18^th December 2021 - Copenhagen.

30^th November 2021 - Seminar, Delhi/online. (Slides)

24^th November 2021 - Colloquium, Sheffield/online. (Slides)

23^rd November 2021 - Johnson homomorphisms and related topics, online.

9^th November 2021 - Algebraic Topology seminar, Warwick.

10^th-15^th October 2021 - Cohomology of Arithmetic Groups, Banff/online. (Slides)

21^st-23^th September 2021 - The unity of mathematics: A conference in honour of Sir Michael Atiyah, Cambridge. (Video)

5^th-7^th July 2021 - Operads, Calculus, and Homotopy theory methods in Topology, Lille/online. (Video)

21^st-25^th June 2021 - Manifolds and K-Theory: the legacy of Andrew Ranicki, online.

23^rd-29^th May 2021 - Cellular E_k-algebras, Oberwolfach/online. (Notes)

14^th April 2021 - Building Bridges Seminar, online.

13^th April 2021 - Regensburg SFB-Lecture, online. (Slides)

18^th January 2021 - Oxford topology seminar, online. (Slides)

9^th November 2020 - Muenster topology seminar, online. (Slides)

5^th November 2020 - Princeton algebraic topology seminar, online. (Slides)

14^th September 2020 - MIT topology seminar, online. (Slides)

27^th August 2020 - Copenhagen Centre for Geometry and Topology, online. (Slides)

26^thJuly-1^st August 2020 - Topologie, online.

28^th April 2020 - Bonn topology seminar, online. (Slides)

9^th-15^th February 2020 - Manifolds and groups, Oberwolfach.

16^th January 2020 - electronic Computational Homotopy Theory Seminar, online. (Video, Slides)

11^th October 2019 - Colloquium, Warwick.

7^th October 2019 - Colloquium, Durham.

30^th September-4^th October 2019 - Clay research conference and workshops, Oxford. (Video, Slides)

2^nd-6^th September 2019 - Automorphisms of Manifolds, Bonn. (Video 1, Video 2)

8^th-12^th July 2019 - Four Manifolds: Confluence of High and Low Dimensions, Toronto.

24^th-28^th June 2019 - SYM 10 Years Old, Copenhagen.

15^th June 2019 - Séminaire Bourbaki, Paris. (Video, notes)

13^th-17^th May 2019 - Johnson homomorphisms and related topics, Tokyo.

8^th-12^th April 2019 - Talbot, McCullough County, TX.

1^st-5^th April 2019 - Geometry at infinity, Muenster.

5^th March 2019 - INteresantísimo SEminario de Geometría y TOpología, Málaga.

13^th-20^th January 2019 - Harvard.

12^th October 2018 - Geometry and Topology seminar, Imperial College, London.

2^nd-6^th July 2018 - Topologie, Oberwolfach. (Abstract)

18^th-23^rd June 2018 - Manifolds, Groups, and Homotopy, Skye. (Slides)

15^th-16^th February 2018 - K-theory, A1-homotopy and quadratic forms, Warwick.

14^th-15^th December 2017 - Bavarian Geometry and Topology Meeting II, Augsburg.

11^th-15^th September 2017 - Algebraic Topology of Manifolds, Oxford.

26^th-30^th June 2017 - Analysis and Topology in Interaction, Cortona.

5^th-9^th June 2017 - Groups, Manifolds, and K-theory, Muenster.

22^nd-26^th May 2017 - Johnson-Morita theory and related topics, Tokyo.

20^th-21^st April 2017 - Moduli and Traces: A celebration of the mathematical life of Ib Madsen, Copenhagen.

3^rd-6^th April 2017 - British Mathematical Colloquium, Durham.

16^th March 2017 - Topology seminar, Queen Mary, London.

13^th March 2017 - OAC-manifolds, Oxford.

5^th-12^th January 2017 - University of Copenhagen.

19^th-23^rd September 2016 - European Autumn School in Topology, the woods close to Utrecht.

9^th September 2016 - OAC-manifolds, Cambridge.

6^th-7^th September 2016 - TTT, Manchester.

18^th July-23^rd July 2016 - Topologie, Oberwolfach. (Abstract)

4^th July-8^th July 2016 - Young Topologists Meeting, Copenhagen.

27^th June-1^st July 2016 - Topology of manifolds: a conference in honour of Michael Weiss' 60th birthday, Lisbon.

9^th May 2016 - OAC-manifolds, Aberdeen.

11^th March 2016 - Scottish Topology Seminar, Edinburgh.

22^nd-23^rd February 2016 - OAC-manifolds, Oxford.

18^th February 2016 - Warwick University.

14^th-17^th December 2015 - Aspects of Homotopy Theory, Southampton.

14^th October 2015 - Columbia University.

6^th October 2015 - Topology seminar, Stanford University.

4^th October-5^th December 2015 - Stanford University.

28^th September-2^nd October 2015 - Manifolds Unlocking Higher Structures, Clay Mathematical Institute Workshop, Oxford.

21^st September 2015 - Moduli spaces and their applications, Liverpool.

27^th July-21^st August 2015 - Hausdorff Centre for Mathematics, Bonn.

29^th June-10^th July 2015 - PIMS Symposium on the Geometry and Topology of Manifolds, Vancouver.

4^th-8^th May 2015 - Introductory school: Homotopy theory, manifolds, and field theories, HIM, Bonn. (Video: Lecture 1 / Lecture 2 / Lecture 3)

13^th-15^th April 2015 - Stockholm.

20^th-28^th March 2015 - Teichmüller Modular Groups: A Celebration of Nikolai Ivanov's 60th Birthday, Chicago.

23^rd February 2015 - Southampton.

19^th January 2015 - Oxford.

14^th-16^th December 2014 - Aberdeen.

15^th-20^th September 2014 - Topologie, Oberwolfach. (Abstract)

9^th-12^th August 2014 - ICM Satellite Conference on Algebraic Topology, Dalian, China.

23^rd-27^th June 2014 - Manifolds, K-theory, and related topics, Dubrovnik.

16^th-20^th June 2014 - Analysis and Topology in Interaction, Cortona.

9^th-13^th June 2014 - Summer school, Münster. (Video: Lecture 1 / Lecture 2 / Lecture 3 / Lecture 4)

7^th-10^th April 2014 - BMC, Queen Mary, London.

27^th February 2014, MSRI Research Seminar.

17^th February 2014, Rice University.

11^th February 2014, Stanford University.

27^th January-28^th February 2014 - Algebraic Topology programme, MSRI, Berkeley. (Video)

2^nd December 2013 - University of Glasgow.

18^th November 2013 - University of Manchester.

10^th-13^th October 2013 - Cohomology of the moduli space of curves, Zürich.

9^th-11^th September 2013 - British Topology Meeting, Aberdeen. (Slides)

26^th-30^th August 2013 - Homological stability workshop, Copenhagen.

15^th-16^th May 2013 - Institut de Mathématiques de Jussieu.

2^nd May 2013 - University of Sheffield.

8^th-19^th April 2013 - Stanford University.

25^th-28^th March 2013 - BMC 2013, Sheffield.

17^th-19^th December 2012 - Aspects of Topology, Oxford.

7^th December 2012 - Topology seminar, Nottingham.

4^th-5^th December 2012 - SFB seminar and Algebraic Geometry seminar, Humboldt University, Berlin.

16^th November 2012 - Quarterly seminar on Geometry and Topology, Amsterdam.

29^th October 2012 - Oxford.

19^th-21^st October 2012 - XIX Encuentro de Topología, La Coruña. (Slides, Slides in English)

17^th-22^nd September 2012 - Topologie, Oberwolfach. (Abstract).

6^th-8^th September 2012 - 27th British Topology Meeting, Cambridge.

20^th-26^th August 2012 - Arolla. (Slides)

23^rd-27^th July 2012 - Stanford, Algebraic Topology:Applications and New Directions.

25^th-29^th June 2012 - Luminy, Homotopical Algebra and Its Applications.

3^rd-6^th May 2012 - Westfälischen Wilhelms-Universität Münster, 17th NRW meeting.

6^th-10^th February 2012 - Universitat de Barcelona.

23^rd-26^th January 2012 - Max Planck Institute for Mathematics.

26^th-27^th October 2011 - Edinburgh. (Video)

24^th-25^th October 2011 - Glasgow.

5^th-7^th October 2011 - ETH.

26^th-30^th September 2011 - MIT.

3^rd-23^th July 2011 - "Moduli Spaces of Riemann Surfaces" at the Park City Math Institute, Utah.

2^nd-13^th May 2011 - Stanford University.

25^th-29^th April 2011 - "The Kervaire invariant and stable homotopy theory" at the ICMS, Edinburgh.

27^th-29^th October 2010 - NTNU.

19^th-25^th September 2010 - Topologie, Oberwolfach. (Abstract).

6^th-8^th September 2010 - 25^th British Topology Meeting, Oxford.

9^th-14^th August 2010 - West coast algebraic topology summer school, Eugene, Oregon.

1^st-8^th August 2010 - Stanford University.

11^th-24^th April 2010 - Stanford University.

23^rd March 2010 - Warwick University.

1^st-5^th February 2010 - University of Copenhagen.

14^th-15^th September 2009 - 24^th British Topology Meeting, Leicester.

8^th-11^th June 2009 - 25^th Nordic and 1^st British-Nordic Congress of Mathematicians, Oslo.

24^th-30^th May 2009 - Manifold Perspectives, Oberwolfach. (Abstract).

11^th-15^th May 2009 - University of Bonn.

6^th-20^th January 2009 - Stanford University.

8^th-9^th December 2008 - University of Sheffield.

18^th-24^th August 2008 - Third Arolla Conference on Algebraic Topology in Arolla, Switzerland.

23^rd-27^th June 2008 - "Homotopical Group Theory and Topological Algebraic Geometry Conference" at the Max Planck Institute for Mathematics.

16^th-20^th June 2008 - "Homotopical Group Theory and Topological Algebraic Geometry Workshop" at the University of Copenhagen.

26^th-31^st May 2008 - "Topology in the Swiss Alps" Young Topologists' Meeting in Le Châtelard, Switzerland.

21^st-25^th April 2008 - Westfälischen Wilhelms-Universität Münster.