2019
January 18th 2019, at the Institut Fourier, Grenoble: tba.
2018
November 27th 2018, at the Topology Seminar at the Math Institute of the University of Bonn: Linking pairings and unknotting numbers.
November 13th 2018, at the Seminar Algebra and Geometry of the University of Basel: Positivity, Graphs and Unknotting.
April 27th 2018, at the Knot theory seminar at Warsaw University: Genus and Unknotting.
April 17th 2018, at the Seminar of the SFB Higher Invariants at Regensburg: Balanced unknotting, Blanchfield form, and surfaces in 3 and 4space.
March 15th 2018, at the Boston College Geometry/Topology seminar: Balanced unknotting, Blanchfield form, and surfaces in 3 and 4space.
March 7th 2018, at the conference Quantum Knot Homology and Supersymmetric Gauge Theories at the Aspen Center for Physics: Upsilonlike invariants from KhovanovRozansky sl(n) homologies.
2017
November 27th 2017, at the Séminaire Géométrie, Dynamique et Topologie of the Institut de Mathématiques de Marseille: L'homologie de KhovanovRozansky entre les nœuds positifs et négatifs.
November 24th 2017, at the Séminaire Topologies of the Institut Montpelliérain Alexander Grothendieck: Graphes planaires et clôtures de tresses positives.
June 27th 2017, at the workshop Quantum topology and categorified representation theory at the
Isaac Newton Institute in Cambridge:
An Upsilonlike invariant from KhovanovRozansky homology.
April 27th 2017, at the Séminaire de Topologie et Géométrie in Geneva: L'homologie de KhovanovRozansky entre les nœuds positifs et négatifs.
April 5th 2017, at the University of Zurich: KhovanovRozansky homology in between positive and negative knots.
March 27th 2017, at the Séminaire quantique in Strasbourg: KhovanovRozansky homology in between positive and negative knots.
February 16th 2017, at the seminar of the programme Homology theories in low dimensional topology at the Isaac Newton Institute in Cambridge: The Seifert form's optimal bounds for slice genera.
2016
October 26th 2016, at the Seminar on knot concordance and 4manifolds of the
Topology Trimester at the HIM (Bonn):
Slice genus bounds from the Seifert form.
May 4th 2016, at Oberseminar Globale Analysis of the University of Regensburg:
Seifert Form and Slice Genus of Knots.
February 23rd 2016, at the BIRS Workshop about Synchronizing Smooth and Topological 4Manifolds in Banff:
Upper bounds for the topological slice genus of knots.
2015
September 15th 2015, at the Topology Seminar of the IMJ in Paris:
Théorie des nombres et genre slice topologique des nœuds.
June 13th 2015, at the special session
Categorification of Quantum groups, Representations and Knot Invariants of the
Joint AMSEMSSPM meeting in Porto:
New quantum obstructions to sliceness.
April 28th 2015, at the Zurich Graduate Colloquium: What is... a knot's slice genus?
April 15th 2015, at the Seminar "Quantum Groups and LowDimensional Topology" of the University Zurich: KhovanovRozansky homologies with nonstandard potentials.
2014
November 19th 2014, at the Colloquium of Tohoku University: The asymptotic slice genus of alternating knots.
September 22nd 2014, at the Mathematical Colloquium of Bern: Quantum obstructions to sliceness of knots.
September 19th 2014, at the Knot Theory SessionSymposium of the DMVPTM Joint Meeting in Poznań: KhovanovRozansky homologies induce nonadditive fourball genus bounds.
September 17th 2014, at the Oberwolfach Workshop "Topologie": KhovanovRozansky homologies induce nonadditive fourball genus bounds.
July 2nd 2014, in Regensburg: Neue Schranken für das vierdimensionale Geschlecht.
June 19th 2014, at the Institut de Mathématiques de Bourgogne: De nouvelles obstructions quantiques au genre slice des nœuds.
May 22nd 2014, at the MPIOberseminar: New quantum obstructions to sliceness.
April 28th 2014, at the Oberseminar Topologie of the WWU Münster: New quantum obstructions to smooth sliceness of knots.
January 21st 2014, at the Topology Seminar of the George Washington University: More on KhovanovRozansky concordance invariants.
January 19th 2014, at Knots in Washington XXXVII: The KhovanovRozansky concordance invariants.
January 8th 2014, at the Centre for Quantum Geometry of Moduli Spaces, Aarhus: The KhovanovRozansky concordance invariants.
2013
November 28th 2013, at the University of Geneva Séminaire de Topologie et Géométrie: The KhovanovRozansky concordance invariants.
November 6th 2013, at the Topology Reading Group, Durham: The KhovanovRozansky concordance invariants.
November 8th 2013, at the London Topology and Geometry Seminar: The KhovanovRozansky concordance invariants.
October 24th 2013, at the Boston College Geometry/Topology seminar: The KhovanovRozansky concordance invariants.
October 22th 2013, at the UC Davis Geometry/Topology seminar: The KhovanovRozansky concordance invariants.
October 22th 2013, at the UC Davis StudentRun Geometry/Topology seminar: An introduction to the KhovanovRozansky homologies.
October 20th 2013, at the Joint Los Angeles Topology Seminar: The KhovanovRozansky concordance invariants.
October 17th 2013, at Stony Brook's Thursday Topology Seminar: The KhovanovRozansky concordance invariants.
October 14th 2013, at an informal seminar at Columbia University: The KhovanovRozansky concordance invariants.
September 26th 2013, at the University of Zurich: The KhovanovRozansky concordance invariants.
June 17th 2013, at the Pure Maths Colloquium, Durham: Knot concordance, slicetorus homomorphisms and the KhovanovRozansky homologies.
June 5 2013, at the Workshop on "Geometry and topology of smooth 4manifolds", Bonn: Distinguishing the KhovanovRozansky knot concordance invariants.
May 6th 2013, at the Université catholique de Louvain: The Rasmussen and other slicetorus knot concordance invariants.
April 26th 2013, at Young Topology Meeting: Knot Concordance.
April 5th 2013, at Swiss Knots: The KhovanovRozansky concordance invariants.
2012
October 8th, 2012, in the working group TQFT et catégorification (IMJ): Les bornes au genre lisse fournies par les homologies sl(n) sont distinctes.
February 29th, 2012, at the winterschool of la Llagonne, together with Pierre Dehornoy:
L'espace de Teichmüller et sa compactification.
February 6th, 2012, at the conference Topologie quantique et catégorification:
link homology and a Lower Bound for the Slice Genus and
link homology of Knotted Webs and of their Branched KleinCoverings.
2011
March 2011, at the winterschool of la Llagonne:
Des nouvelles manières de calculer l'invariant de concordance de Rasmussen.
2010
December 9th, 2010, in an informal seminar (IMJ): Qu'estce qu'une suite spectrale?
October 11th, 2010, in the working group TQFT et Catégorification:
Calcul de l'homologie de Khovanov et de l'invariant de Rasmussen.
April 15th, 2010, in an informal seminar (IMJ): La sphère de Poincaré.
March 3rd and 4th, 2010, together with LouisHadrien Robert and Christian Blanchet, at the winterschool of la Llagonne: Topological moduli spaces of knots about Allen Hatcher's draft of the same name.
February 22nd, 2010, in the working group Algèbre et Topologie quantiques:
Représentation de sur la 2catégorie des drapeaux
about §6 of the paper of Khovanov and Lauda, see below.
February 15th, 2010, in the working group Algèbre et Topologie quantiques:
Cohomologie des variétés de drapeaux à n pas
about §5 of Khovanov and Lauda's paper A diagrammatic approach to categorification of quantum groups III.
