J.H.
Lake Louise, Banff, Alberta, Sept. 5 2018
Office address:
Centre de recherches mathématiques
Université de Montréal
C.P. 6128, Succ. centreville
Montréal, Qué.
H3C 3J7
Positions:
Research interests:

Mathematical physics: gauge theory, relativity,
integrable systems, random matrices, random processes,

Group theory, differential equations, differential geometry, combinatorial analysis
Publications
Lectures at conferences, workshops, summer schools
2013  2020

June 314, 2013, Centre de recherches mathématiques,
Université de Montréal
CRM Workshop on Moduli Spaces and their Invariants in Mathematical Physics.

June 22  29, 2013, Gallipoli, Italy,
Conference on Physics and Mathematics of Nonlinear Phenomena,

July 15 19, 2013, CIRM (Marseille) 2nd Conference on
Finite Dimensional Integrable Systems  FDIS13

Aug. 25  30, 2013, Banff International Research Station (BIRS),
Workshop on Integrable Systems and Moduli Spaces,

July 15 19, 2013, CIRM (Marseille) 2nd Conference on
Finite Dimensional Integrable Systems  FDIS13

Aug. 25  30, 2013, Banff International Research Station (BIRS),
Workshop on Integrable Systems and Moduli Spaces,

May 26  31, 2014, Steklov Institute and Higher School for Economics (HSE), Moscow,
Fourth international workshop on Combinatorics of Moduli Spaces, Cluster Algebras and Topological Recursion

June 15  20, 2014, Banff International Research Station (BIRS), workshop:
Quantum Curves and Quantum Knot Invariants

August 25  29, 2014, Centre de recherches math;eacute;matiques,
Université de Montréal,
Workshop on: Exact Solvability and Symmetry Avatars

Oct. 2529, 2014: Shanghai University, International Conference
on Orthogonal Polynomials, Integrable System

May 11  July 2015, Florence, Galileo Galilei Institute for Theoretical Physics,
GGI Programme on Statistical Mechanics, Integrability and Combinatorics
May 18  22: Focus Week on
Lattice Models: Exact Methods and Combinatorics

June 711, 2015, Centre de recherches mathématiques, Université de Montréal,
Asymptotics in integrable systems, random matrices and random processes and universality

January 913, 2016 CRM (Montreal) Workshop: Moduli spaces, integrable systems, and topological recursions,
Weighted Hurwitz numbers, taufunctions and topological recursion

June 6  11, 2016, Moscow, Russia;
5TH Workshop on combinatorics of moduli spaces, Hurwitz numbers and topological field theory,
Weighted Hurwitz numbers, taufunctions and topological recursion

July 39, 2016, Ste. Adele, Quebec, Canada,
SIDE 12 International conference on Symmetries and Integrability of Difference Equations,
Quantum spectral curves for weighted Hurwitz numbers and isomonodromic deformations

October 2  7, 2016, Banff International Research Station (BIRS), workshop:
Painleve Equations and Discrete Dynamics,
Weighted Hurwitz numbers, topological recursion and isomonodromic deformations

March 69 2017, Workshop on:
Irregular Connections, Character Varieties and Physics, Paris VII
Weighted Hurwitz numbers, topological recursions and isomonodromic deformations

March 1317 2017, Institut Henri PoincarĂ© Workshop
Enumerative geometry and combinatorics of moduli spaces
"Weighted Hurwitz numbers and topological recursion"

Aug. 2125, 2017,CRM Conference on Gauge Theories, Monopoles, Moduli Spaces and Integrable Systems
in Honour of Jacques Hurtubise,
Weighted Hurwitz numbers , taufunctions and topological recursion

July 1622, 2018, CRM workshop, Algebraic methods in integrable systems,
CRM workshop, Algebraic methods in integrable systems,
Quantum Hurwitz numbers and their asymptotics

Sept. 27, 2018, Banff International Research Station (BIRS), workshop:
Tau functions of integrable systems and their applications
Weighted Hurwitz numbers and topological recursion

May 610, 2019, CRM workshop: Faces of Integrability.
Generating weighted Hurwitz numbers

July 1  5, 2019 CRM workshop: Quantum theory and symmetries,
Matrix models for weighted Hurwitz numbers
Older events
Videos and MP3's of lectures (since 2002)

"Twomatrix models, duality and the RiemannHilbert problem associated to biorthogonal polynomials"
MSRI, Berkeley. Sept. 30, 2002
Program: Recent Progress in Random Matrix Theory and Its Applications

"Hamiltonian theory of the general rational isomonodromic deformation problem"
Fields institute, Toronto, May. 20, 2004
Program: Workshop on Integrable and NearIntegrable Hamiltonian PDE

"Matrix integrals as isomonodromic tau functions"
Isaac Newton Institute for Mathematical Sciences, Cambridge, Sept. 21, 2006
Program: Painlevée Equations and Monodromy Problems: Recent Developments
mp3
.pdf

"Tau Functions, Random Matrices, and Random Processes"
Kavli Institute for Theoretical Physics, Santa Barbara, Nov. 29, 2006
Program: Stochastic Geometry and Field Theory: From Growth Phenomena to Disordered Systems

"Tau Functions, Integrable Systems, Random Matrices and Random Processes"
Workshop on Quadrature Domains and Laplacian Growth in Modern Physics
BIRS, Banff, July 1520, 2007

"Fermionic construction of tau functions and random processes"
Integrable and stochastic Laplacian growth in modern mathematical physics
BIRS, Banff, October 31  November 5, 2010
"Convolution symmetries, KP Tau functions and commuting flows"
Integrable systems, growth processes and KPZ universality
BIRS, Banff, September 23  28, 2012

"KP Tau functions, Convolution Flows, and applications"
Facets of Integrability: Random Patterns, Stochastic Processes, Hydrodynamics, Gauge Theories and Condensed Matter Systems
Simons Center, January 2127, 2013

"Tau functions, convolution symmetries and applications"
July 25, 2013, Chebyshev Laboratory, St. Petersburg

"Tau functions as generators of integrable systems, random process
and moduli space invariants"
Integrable Systems and Moduli Spaces
BIRS, Banff, August 25  30, 2013

"2D Toda Tau functions as combinatorial generating functions"
May 30, 2014 12:40, Moscow, Independent University of Moscow
Fourth international workshop "Combinatorics of Moduli Spaces, Cluster Algebras and Topological Recursion"

"2D Toda Tau functions as combinatorial generating functions"
Quantum Curves and Quantum Knot Invariants
BIRS, Banff, June 15  20, 2014

"Panel discussion: Soliton moduli and SYM scattering amplitudes: coincidence or design?"
Panel Members: John Harnad (Chair), Michael Gekhtman, Yuji Kodama, Lionel Mason, Lauren Williams, Jaroslav Trnka
Workshop:
Positive Grassmannians: Applications to integrable systems and super YangMills scattering amplitudes
CRM Thematic semester on "AdS/CFT holography and integrable systems",
Montreal, July 2731, 2015

"Weighted Hurwitz numbers, tau functions and topological recursion"
5th Workshop on combinatorics of moduli spaces, Hurwitz spaces and cohomological field theories
Moscow, Steklov Institute and Moscow Independent University, June 610, 2016

"Weighted Hurwitz numbers, topological recursion and isomonodromic deformations"
Workshop: Painleve Equations and Discrete Dynamics
BIRS (Banff International Research Station), October 3, 2016

"Quantum Hurwitz Numbers"
IPhTh, CEA, Saclay, Gif sur Yvette,
February 27, 2017

"Weighted Hurwitz numbers and topological recursion"
Workshop: Tau functions of integrable systems and their applications
BIRS (Banff International Research Station), September 4, 2018

"Fermionic approach to bilinear expansions of KP correlators in terms of BKP correlators"
CRM Mathematical Physics Seminar,
Centre de recherches mathematiques, October 19, 2020

"Bilinear expansions of lattices of KP taufunctions in BKP tau functions: a fermionic approach"
Kansas State University, Representation Theory,
Mathematical Physics Seminar February 23, 2021
Recollections
Essays, reviews, letters

"Debating the future of physics publishing", Physics World Letter, March 2007

"Free for all", Physics World Forum, December 2008

Review of "Trouble with physics", Mathematical Intelligencer, Vol. 30, no. 3, 2008

"Aisenstadt Chair: Andrei Okounkov", CRM Bulletin, 2008

JH comments on UK Government Directives on Open Access, July 2012

"Realities of open access", Physics World Letter, November 2013

"Open_refereeing", Physics World forum, February 2016

"Aisenstadt Chair: Bertrand Eynard", CRM Bulletin, 2016
Other links: