Selected Presentations & Appearances
What can one say about the loci where the normal function of the Ceresa cycle is constant?
- VaNTAGe seminar
· October 1, 2024
Invited Talk
(online)
Torelli groups and the geometry and arithmetic of moduli spaces of curves
- Mathematics colloquium
· September 12, 2024
Invited Talk
University of North Carolina,
Chapel Hill
Mapping class groups of simply connected algebraic manifolds
- Colloquium de Mathématiques
· May 31, 2024
Invited Talk
Université de Montpellier
The rank of the normal function of the Ceresa cycle
- The Ceresa Cycle in Arithmetic and Geometry
· May 16, 2024
Invited Talk
ICERM (virtual),
Brown University
Hecke actions on loops and periods of iterated Shimura integrals
- Topology and arithmetic of moduli spaces of curves
· May 15, 2024
Invited Talk
Université de Montpellier
What can one say about the loci where the normal function of the Ceresa cycle is constant?
- VaNTAGe seminar
· October 1, 2024
Invited Talk
(online)
Torelli groups and the geometry and arithmetic of moduli spaces of curves
- Mathematics colloquium
· September 12, 2024
Invited Talk
University of North Carolina,
Chapel Hill
Mapping class groups of simply connected algebraic manifolds
- Colloquium de Mathématiques
· May 31, 2024
Invited Talk
Université de Montpellier
The rank of the normal function of the Ceresa cycle
- The Ceresa Cycle in Arithmetic and Geometry
· May 16, 2024
Invited Talk
ICERM (virtual),
Brown University
Hecke actions on loops and periods of iterated Shimura integrals
- Topology and arithmetic of moduli spaces of curves
· May 15, 2024
Invited Talk
Université de Montpellier
The rank of the normal function of the Ceresa cycle
- Topology and arithmetic of moduli spaces of curves
· May 14, 2024
Invited Talk
Université de Montpellier
The Goldman–Turaev Lie bialgebra — is it motivic?
- Topology and arithmetic of moduli spaces of curves
· May 13, 2024
Invited Talk
Université de Montpellier
Is the Goldman-Turaev Lie Bialgebra Motivic?
- Periods seminar
· January 8, 2024
Invited Talk
Tsinghua University, Beijing,
(virtual)
Mapping class groups of simply connected algebraic manifolds
- Algebraic topology seminar
· November 2, 2023
Invited Talk
Princeton University,
(virtual)
Mapping class groups of simply connected algebraic manifolds
- Colloquium
· September 2023
Invited Talk
Institut de Mathématiques de Bourgogne,
Dijon
Hodge Correlators, the Goldman-Turaev Lie Bialgebra and Johnson Homomorphisms
- Workshop on Mapping class groups: pronilpotent and cohomological approaches
· September 2023
Invited Talk
SwissMAP,
Les Diablerets, Switzerland
Polylogs: prehistory and future directions
- workshop on Polylogarithms, Cluster Algebras, and Scattering Amplitudes
· September 2023
Invited Talk
Brin Mathematics Research Center,
University of Maryland
Hecke Actions on Loops and Periods of Iterated Shimura Integrals
- Periods, Shafarevich Maps and Applications
· February 2023
Invited Talk
University of Miami,
Florida
Modular inverters
- Algebra, Topology and the Grothendieck-Teichmüller group
· August 2022
Invited Talk
SwissMAP Research Station (Switzerland),
(virtual)
Weighted completion of Galois groups and rational points
- Rational Points and Galois Representations
· May 2021
Invited Talk
University of Pittsburgh,
(virtual)
A Guide to Variations of Mixed Hodge Structure: Generalities and Examples
- Recent Developments in Hodge Theory
· April 2021
Invited Talk
University of Miami,
(virtual)
Hecke operators and iterated integrals of modular forms
- Galois Theory of Periods Seminar
· November 2020
Invited Talk
Oxford University,
(virtual)
Johnson Homomorphisms, the Goldman--Turaev Lie bialgebra and GRT
- Patterns in Cohomology of Moduli Spaces
· October 1, 2019
Invited Talk
Clay Mathematics Institute,
Oxford University
Mixed elliptic motives
- Masterclass: Elliptic Motives
· May 20, 2019
- May 24, 2019
Instructional Course, Workshop, or Symposium
KTH Royal Institute of Technology and University of Stockholm,
The Johnson homomorphism and its generalizations
- Séminaire "Groupes de Lie et espaces des modules"
· April 5, 2019
Invited Talk
University of Geneva,
Switzerland
Path torsors of moduli spaces of curves
- Modular forms, periods and scattering amplitudes
· April 2019
Invited Talk
Institute for Theoretical Studies,
ETH Zurich
Hodge Theory and the Goldman–Turaev Lie Bialgebra
- Algebra seminar
· October 16, 2018
Invited Talk
University of Oregon,
Eugene
Completions of Mapping Class Groups
- Mathematics Department Colloquium
· October 15, 2018
Invited Talk
University of Oregon,
Eugene
Hodge theory and the Goldman-Turaev Lie bialgebra
- Workshop on Poisson geometry of moduli spaces, associators and quantum field theory
· May 2018
Invited Talk
Simons Center,
SUNY, Stony Brook
(Two talks)
Modular inverters
- Workshop: Periods and Regulators
· January 2018
Invited Talk
University of Bonn,
Hausdorff Institute of Mathematics
Multiple modular motives II
- Periods in Number Theory, Algebraic Geometry and Physics
· January 2018
Invited Talk
University of Bonn,
Hausdorff Institute of Mathematics
Ihara Curves
- Workshop: Johnson homomorphisms and related topics
· August 2017
Invited Talk
University of Tokyo,
Department of Mathematics
Johnson homomorphisms, stable and unstable
- Topology seminar
· August 2017
Invited Talk
University of Tokyo,
Japan
Motives and derivations of free Lie algebras
- Hot Topics: Galois Theory of Periods and Applications
· March 2017
Invited Talk
Mathematical Sciences Research Institute,
Berkeley, CA
Introduction to mixed modular motives
- Local zeta functions and the arithmetic of moduli spaces: A conference in memory of Jun-Ichi Igusa
· March 2017
Invited Talk
Johns Hopkins University,
Baltimore
Introduction to Unipotent and Relative Unipotent Completion
- Algebraic geometry seminar
· October 2016
Invited Talk
Purdue University,
Motivic Structures on Mapping Class Groups
- ALGECOM-14
· October 2016
Invited Talk
Purdue University,
Completions of path torsors of moduli spaces of curves (4 lectures)
- GRT, MZVs and associators workshop
· August 2016
Invited Talk
Les Diablerets, Switzerland,
Galois actions on unipotent fundamental groups of curves
- Topology of Complex Algebraic Varieties
· May 2016
Invited Talk
CIRM, Luminy, France,
Mixed motives associated to elliptic curves
- Moduli Spaces in Geometry
· October 2015
Invited Talk
CIRM, Luminy, France,
Mixed motives associated to classical modular forms
- Algebraic Geometry 2015
· July 2015
Invited Talk
American Mathematical Society,
University of Utah
Rational Points of Universal Curves
- Algebra seminar
· April 2015
Invited Talk
Colorado State University,
Rational Points of Universal Curves
- Algebra seminar
· March 16, 2015
Invited Talk
University of Pennsylvania,
A Torelli Odyssey
- Teichmüller Modular Groups
· March 2015
Invited Talk
University of Chicago,
Normal functions and the geometry of moduli spaces of curves
· January 2015
Invited Talk
Institute for Advanced Study, Princeton,
The Hodge theory of SL_2(Z) and Pollack's relations between derivations
- Workshop on Multiple Zeta Values, Modular Forms and Elliptic Motives II
· December 2014
Invited Talk
ICMAT, Madrid,
The Hodge-de Rham theory of modular groups
- Conference on Hodge Theory and L^2-cohomology
· November 2014
Invited Talk
Johns Hopkins University,
The Hodge-de Rham theory of modular groups
- Workshop on Periods
· October 2014
Invited Talk
Institute for Advanced Study, Princeton,
Can a mapping class group ever be a Kähler group?
- Algebra seminar
· September 12, 2014
Lecture
University of Sydney,
Invited Lectures
Introduction to universal mixed elliptic motives
- Motives conference
· September 5, 2014
Invited Talk
Hiroshima University,
Invited Lectures
Universal mixed elliptic motives
- mini-course
· May 2014
Lecture
Institut des Hautes Études Scientifiques,
Bures-sur-Yvette, France
Invited Lectures ; http://www.math.duke.edu/faculty/hain/ihes/ notes
Motivic structures on completions of modular groups
- Fundamental Groups in Arithmetic and Algebraic Geometry
· December 20, 2013
Lecture
Di Giorgi Center, Pisa, Italy,
Invited Lectures
Modular forms and multiple zeta values, Texas Geometry and Topology Conference
· October 13, 2013
Lecture
Texas A&M University
The Hodge theory of relative completions of modular groups, Recent Advances in Hodge Theory
· June 14, 2013
Lecture
University of British Columbia, Vancouver, BC
Hodge Theory and Iterated Integrals, Summer School, Recent Advances in Hodge Theory
· June 13, 2013
Lecture
University of British Columbia, Vancouver, BC
The Beauville splitting of the Chow groups of a the jacobian of a general curve, Algebra Seminar
· May 17, 2013
Lecture
University of Sydney
Higher Genus Polylogarithms, Workshop on Grothendieck-Teichmüller Theory and Multiple Zeta Values
· April 10, 2013
Lecture
Newton Institute, Cambridge, UK
Infinitesimal presentations of mapping class groups, Colloquium
· February 28, 2013
Lecture
SUNY Stony Brook
The Beauville splitting of the Chow groups of a general jacobian, Algebra, Geometry and Physics seminar
· February 27, 2013
Lecture
SUNY Stony Brook
Scissors Congruence, NAM MathFest
· November 8, 2012
Lecture
Morgan State University, Baltimore MD
Mapping class groups and rational points of algebraic curves, Algebraic Geometry and Number Theory seminar
· November 7, 2012
Lecture
Johns Hopkins University
Colloquium, Mapping class groups and rational points of algebraic curves
· October 19, 2012
Lecture
University of Illinois, Chicago
Morse theory and the topology of moduli spaces of curves
· June 8, 2012
Lecture
Centre International de Rencontres Mathématiques, Luminy, France
Morse theory and mapping class groups in low genus, Colloquium
· May 29, 2012
Lecture
Université de Nice
The Torelli group in genus 3, Max Dehn Seminar
· February 16, 2012
Lecture
University of Utah
The Torelli group in genus 3, Geometry/Topoogy seminar
· September 23, 2011
Lecture
University of Chicago
Universal mixed ellliptic motives
· May 24, 2011
Lecture
Lorentz Center, University of Leiden, The Netherlands
Topology and Arithmetic, Colloquium
· May 19, 2011
Lecture
Universiteit Utrecht
On a problem of Eliashberg, Seminaire Algèbre, Topologie et Géométrie
· May 10, 2011
Lecture
Université de Nice, France
Universal mixed ellliptic motives
· May 6, 2011
Lecture
Heilbronn Institute, Bristol University, UK
Topology and arithmetic, Colloquium
· February 24, 2011
Lecture
Rice University
Topology and arithmetic, Max Dehn Seminar
· February 11, 2011
Lecture
University of Utah
Universal mixed elliptic motives
· June 9, 2010
Lecture
Number Theory Seminar, University of Tokyo
On the section conjecture for universal curves over function fields, Algebra Seminar
· May 28, 2010
Lecture
University of Sydney
On the section conjecture for curves over universal function fields
· April 30, 2010
Lecture
Institut Henri Poincaré, Paris
On the section conjecture for universal curves over function fields
· July 29, 2009
Lecture
Newton Institute, Cambridge, UK
On the Section Conjecture for universal curves over function fields, Number Theory Seminar
· June 24, 2009
Lecture
Tokyo University
On the Section Conjecture for universal curves over function fields
· June 19, 2009
Lecture
Number Theory Seminar, Hiroshima University
Hodge and Galois theory of fundamental groups of algebraic varieties, (2 talks) Fundamental Groups in Algebraic Geometry
· May 25, 2009
Lecture
Université de Nice
Groupes de Teichmüller et espaces de modules de courbes, Séminaire Passe-partout
· May 20, 2009
Lecture
Université de Nice
Elliptic curves and multiple zeta numbers, UNSW-Sydney joint Colloquium, University of New South Wales, Australia
· November 14, 2008
Lecture
Algebraic completions of discrete and profinite groups, Algebra Seminar, University of Sydney
· November 6, 2008
Lecture
Elliptic curves and multiple zeta numbers, Colloquium
· September 23, 2008
Lecture
University of Michigan, Ann Arbor
An introduction to moduli of curves through elliptic curves (4 lectures)
· July 1, 2008
Lecture
Zhejiang University, Hangzhou, China
Elliptic motives and multiple zeta values, Séminaire de géométrie algébrique Rennes-Nantes-Paris
· April 3, 2008
Lecture
Institut des Hautes Etudes Scientifiques, Paris
Hyperelliptic Torelli groups, Max-Planck Institut, Bonn, Germany
· January 9, 2008
Lecture
Service to the Profession
Co-organizer (with F. Brown, C. Dupont, V. Vologodsky) of Hot Topics workshop
- Galois Theory of Periods and Applications
·
March 27, 2017
- March 31, 2017
Event/Organization Administration
Mathematical Sciences Research Institute,
UC Berkeley
Program committee (with Valery Alexeev, and François Loeser) for conference:
- Local zeta functions and the arithmetic of moduli spaces: A conference in memory of Jun-Ichi Igusa
·
March 22, 2017
- March 26, 2017
Event/Organization Administration
Johns Hopkins University,
American Mathematical Society, Colloquium Lecture Committee
·
February 2016
- January 2019
Committee Service
American Mathematical Society,
NSF site visit, American Institute of Mathematics
·
May 17, 2015
- May 19, 2015
Other
National Science Foundation,
Distinguished Public Service Award Committee
·
February 2015
- January 2020
Committee Service
American Mathematical Society,
Co-organizer (with F. Brown, C. Dupont, V. Vologodsky) of Hot Topics workshop
- Galois Theory of Periods and Applications
·
March 27, 2017
- March 31, 2017
Event/Organization Administration
Mathematical Sciences Research Institute,
UC Berkeley
Program committee (with Valery Alexeev, and François Loeser) for conference:
- Local zeta functions and the arithmetic of moduli spaces: A conference in memory of Jun-Ichi Igusa
·
March 22, 2017
- March 26, 2017
Event/Organization Administration
Johns Hopkins University,
American Mathematical Society, Colloquium Lecture Committee
·
February 2016
- January 2019
Committee Service
American Mathematical Society,
NSF site visit, American Institute of Mathematics
·
May 17, 2015
- May 19, 2015
Other
National Science Foundation,
Distinguished Public Service Award Committee
·
February 2015
- January 2020
Committee Service
American Mathematical Society,
(co-organizer with J. Burgos (Madrid), K. Ebrahimi-Fard (Madrid), H. Gangl (Durham, UK), J. Kramer (Berlin), O. Patashnick (Bristol, UK), L. Scneps (Paris))
- Workshop on Multiple Zeta Values, Modular Forms and Elliptic Motives II
·
December 1, 2014
- December 5, 2014
Event/Organization Administration
ICMAT, Madrid, Spain,
Organizer (co-organizers Benson Farb and Eduard Looijenga)
- Moduli Spaces of Riemann Surfaces
·
July 3, 2011
- July 23, 2011
Event/Organization Administration
IAS/Park City Mathematics Institute,
Park City, Utah
Conferences Organized
Co-organizer (with Herbert Gangl)
- Multiple zeta values, modular forms and elliptic motives
·
May 2, 2011
- May 6, 2011
Event/Organization Administration
Heilbronn Institute, University of Bristol, UK,
Conferences Organized
Member : Council of the American Mathematical Society
·
February 2010
- January 1, 2013
Other
American Mathematical Society, Committee on Publications
·
February 2010
- January 1, 2013
Other
Director : IAS Park City Mathematics Institute
·
September 2009
- September 2014
Other
American Mathematical Society: Advisory Board for Employment Committee
·
February 2009
- January 31, 2011
Other