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Cohomological Aspects of Quantum Field Theory

January 15 - April 25, 2025

Quantum Field Theory (QFT) is a cornerstone of modern fundamental physics with a wide range of applications, from high-energy physics to mathematical physics. The ideas and techniques of QFT have had a significant impact on the development of mathematics. Over the years, many aspects of QFT have been formalized withina proper mathematical framework. In mathematics, homological/cohomological techniques are typically associated with the study of (co)chain complexes, which can be explored through both their homology and cohomology. This program concentrates on the application of homological/cohomological techniques in the context of QFT.

The program focuses on three different areas: cohomological field theories and enumerative invariants, BV-formalism, and formal geometry, as well as categorification in the context of QFT.

During the program, there will be two workshops with thematically focused talks:

Cohomological aspects of quantum field theories
January 20 – January 24, 2025 

BV-formalism and quantum field theories
March 31 – April 4, 2025 

Further details about the program will be made available closer to the date.

Seminars Scroll to the next upcoming seminar

  • Maxim Zabzine (org): informal discussion about the program January 16 10:30 - 11:30

    Maxim Zabzine (org): informal discussion about the program

  • Administration: Welcome January 20 09:00 - 09:15

    Administration: Welcome

  • Organizers : Welcome January 20 09:15 - 09:30

    Organizers : Welcome

  • Workshop, Giovanni Canepa: Double BFV quantisation and application to 3d Gravity January 20 09:30 - 10:30

    Workshop, Giovanni Canepa: Double BFV quantisation and application to 3d Gravity

  • Workshop, Alberto Cattaneo: Yang–Mills theory from a topological theory January 20 11:00 - 12:00

    Workshop, Alberto Cattaneo: Yang–Mills theory from a topological theory

  • Workshop, Yegor Zenkevich: Spiralling branes and integrable systems January 20 13:30 - 14:30

    Workshop, Yegor Zenkevich: Spiralling branes and integrable systems

  • Workshop, Ezra Getzler: Homotopy moments maps and differential characters January 21 09:30 - 10:30

    Workshop, Ezra Getzler: Homotopy moments maps and differential characters

  • Workshop, Minghao Wang: Invariants of Kahler manifolds and Feynman graph integrals January 21 11:00 - 12:00

    Workshop, Minghao Wang: Invariants of Kahler manifolds and Feynman graph integrals

  • Workshop, Konstantin Wernli: Globalization in perturbative BV theories January 21 13:30 - 14:30

    Workshop, Konstantin Wernli: Globalization in perturbative BV theories

  • Workshop, Henrique  Bursztyn: Symplectic groupoids via 2-shifted lagrangian structures January 21 15:00 - 16:00

    Workshop, Henrique  Bursztyn: Symplectic groupoids via 2-shifted lagrangian structures

  • Workshop, Alexander Buryak: Pairs of compatible Poisson brackets and cohomological field theories January 22 09:30 - 10:30

    Workshop, Alexander Buryak: Pairs of compatible Poisson brackets and cohomological field theories

  • Workshop, Shuhan Jiang: Cohomological Field Theories and Generalized Seiberg-Witten Equations January 22 11:00 - 12:00

    Workshop, Shuhan Jiang: Cohomological Field Theories and Generalized Seiberg-Witten Equations

  • Workshop, Nikita Nekrasov: Geometric relativistic hydrodynamics January 22 13:30 - 14:30

    Workshop, Nikita Nekrasov: Geometric relativistic hydrodynamics

  • Workshop, Alejandro Cabrera: Symplectic supergeometry behind the Mathai-Quillen formalism and applications January 22 15:00 - 16:00

    Workshop, Alejandro Cabrera: Symplectic supergeometry behind the Mathai-Quillen formalism and applications

  • Workshop, Si Li: Stochastic Process and Noncommutive Geometry January 23 09:30 - 10:30

    Workshop, Si Li: Stochastic Process and Noncommutive Geometry

  • Workshop, Alexander Gorsky: Dualities in the integrable many-body systems on the way to p-adics January 23 11:00 - 12:00

    Workshop, Alexander Gorsky: Dualities in the integrable many-body systems on the way to p-adics

  • Workshop, Henry Liu: Wall-crossing and vertex algebras, in cohomology, K-theory, and beyond January 23 13:30 - 14:30

    Workshop, Henry Liu: Wall-crossing and vertex algebras, in cohomology, K-theory, and beyond

  • Workshop. Kasia Rejzner: Functional analytic aspects of BV formalism in perturbative algebraic quantum field theory January 23 15:00 - 16:00

    Workshop. Kasia Rejzner: Functional analytic aspects of BV formalism in perturbative algebraic quantum field theory

  • Workshop, Denis Nesterov: Compactifications of configuration spaces of points January 24 09:30 - 10:30

    Workshop, Denis Nesterov: Compactifications of configuration spaces of points

  • Workshop, Michele Schiavina: BV-BFV formalism in Perturbative Algebraic Quantum Field Theory January 24 11:00 - 12:00

    Workshop, Michele Schiavina: BV-BFV formalism in Perturbative Algebraic Quantum Field Theory

  • Kasia Rejzner: An introduction to pAQFT (mini-course), lecture 1 January 27 10:30 - 11:30

    Kasia Rejzner: An introduction to pAQFT (mini-course), lecture 1

  • Shuhan JIang: Equivariant Localization in Batalin-Vilkovisky Formalism January 27 15:00 - 16:00

    Shuhan JIang: Equivariant Localization in Batalin-Vilkovisky Formalism

  • Kasia Rejzner: An introduction to pAQFT (mini-course), lecture 2 January 28 10:30 - 11:30

    Kasia Rejzner: An introduction to pAQFT (mini-course), lecture 2

  • Kasia Rejzner: An introduction to pAQFT (mini-course), lecture 3 January 29 10:30 - 11:30

    Kasia Rejzner: An introduction to pAQFT (mini-course), lecture 3

  • Miquel Cueca: Deformations of Lagrangian Q-submanifolds January 30 10:30 - 11:30

    Miquel Cueca: Deformations of Lagrangian Q-submanifolds

  • Fridrich Valach : Full supergravity and generalised geometry January 31 10:30 - 11:30

    Fridrich Valach : Full supergravity and generalised geometry

  • Si Li: Homological Method in Topological/Holomorphic QFT (mini-course), lecture 1 February 03 10:30 - 11:30

    Si Li: Homological Method in Topological/Holomorphic QFT (mini-course), lecture 1

  • Pietro Grassi: Quantum Field Theories On Supermanifolds February 04 10:30 - 11:30

    Pietro Grassi: Quantum Field Theories On Supermanifolds

  • Si Li: Homological Method in Topological/Holomorphic QFT (mini-course), lecture 2 February 05 10:30 - 11:30

    Si Li: Homological Method in Topological/Holomorphic QFT (mini-course), lecture 2

  • Si Li: Homological Method in Topological/Holomorphic QFT (mini-course), lecture 3 February 06 10:30 - 11:30

    Si Li: Homological Method in Topological/Holomorphic QFT (mini-course), lecture 3

  • Alex Takeda: Partially defined TQFTs and properadic algebras February 07 10:30 - 11:30

    Alex Takeda: Partially defined TQFTs and properadic algebras

  • Brian Williams: Observables in holomorphic/topological quantum field theory (mini-course), lecture 1 February 10 14:30 - 15:30

    Brian Williams: Observables in holomorphic/topological quantum field theory (mini-course), lecture 1

  • Brian Williams: Observables in holomorphic/topological quantum field theory (mini-course), lecture 2 February 11 10:30 - 11:30

    Brian Williams: Observables in holomorphic/topological quantum field theory (mini-course), lecture 2

  • Brian Williams: Observables in holomorphic/topological quantum field theory (mini-course), lecture 3 February 11 14:30 - 15:30

    Brian Williams: Observables in holomorphic/topological quantum field theory (mini-course), lecture 3

  • Theodore Voronov: Canonical and (higher) derived brackets (mini-course), lecture 1 February 13 10:30 - 11:30

    Theodore Voronov: Canonical and (higher) derived brackets (mini-course), lecture 1

  • Irina Bobrova : Painlevé equations and double quasi-Poisson brackets February 14 10:30 - 11:30

    Irina Bobrova : Painlevé equations and double quasi-Poisson brackets

  • Christian Blohmann: Homotopy reduction of the homotopy momentum map of general relativity February 19 10:30 - 11:30

    Christian Blohmann: Homotopy reduction of the homotopy momentum map of general relativity

  • Theodore Voronov: Canonical and (higher) derived brackets (mini-course), lecture 2 February 20 10:30 - 11:30

    Theodore Voronov: Canonical and (higher) derived brackets (mini-course), lecture 2

  • Ján Pulmann: Lagrangian Relations, Half-Densities and Quantum L∞ Algebras February 21 10:30 - 11:30

    Ján Pulmann: Lagrangian Relations, Half-Densities and Quantum L∞ Algebras

  • Yegor Zenkevich : Free field realizations (mini-course), lectures 1 February 24 14:30 - 15:30

    Yegor Zenkevich : Free field realizations (mini-course), lectures 1

  • Yegor Zenkevich : Free field realizations (mini-course), lectures 2 February 25 10:30 - 11:30

    Yegor Zenkevich : Free field realizations (mini-course), lectures 2

  • Theodore Voronov: Canonical and (higher) derived brackets (mini-course), lecture 3 February 25 14:30 - 15:30

    Theodore Voronov: Canonical and (higher) derived brackets (mini-course), lecture 3

  • Yegor Zenkevich : Free field realizations (mini-course), lectures 3 February 26 10:30 - 11:30

    Yegor Zenkevich : Free field realizations (mini-course), lectures 3

  • Christian Blohmann: Cohomological zero locus of Noether currents and reduction February 27 10:30 - 11:30

    Christian Blohmann: Cohomological zero locus of Noether currents and reduction

  • Pedro H. Carvalho : Homological reduction of Courant algebroids February 28 10:30 - 11:30

    Pedro H. Carvalho : Homological reduction of Courant algebroids

  • Martin Cederwall: Extended geometry: superalgebras and cohomological formulation. March 04 10:30 - 11:30

    Martin Cederwall: Extended geometry: superalgebras and cohomological formulation.

  • Thomas Strobl: Principaloid bundles March 06 10:30 - 11:30

    Thomas Strobl: Principaloid bundles

  • Eugenia Boffo: BRST of spinning particles and BV target space field theory March 07 10:30 - 11:30

    Eugenia Boffo: BRST of spinning particles and BV target space field theory

  • Olaf Holm: Quantum mechanics via cohomology and factorization algebras March 11 10:30 - 11:30

    Olaf Holm: Quantum mechanics via cohomology and factorization algebras

  • Ezra Getzler: The Variational Bicomplex and BV Cohomology (mini-course), lecture 1 March 12 10:30 - 11:30

    Ezra Getzler: The Variational Bicomplex and BV Cohomology (mini-course), lecture 1

  • Ezra Getzler: The Variational Bicomplex and BV Cohomology (mini-course), lecture 2 March 13 10:30 - 11:30

    Ezra Getzler: The Variational Bicomplex and BV Cohomology (mini-course), lecture 2

  • Ezra Getzler: The Variational Bicomplex and BV Cohomology (mini-course), lecture 3 March 13 14:30 - 15:30

    Ezra Getzler: The Variational Bicomplex and BV Cohomology (mini-course), lecture 3

  • Victor Mishnyakov: Matrix Models, Painlevé Equations, and beta-deformation (from the Painlevé VI point of view) March 14 10:30 - 11:30

    Victor Mishnyakov: Matrix Models, Painlevé Equations, and beta-deformation (from the Painlevé VI point of view)

  • Mathieu Stienon: Formal exponential maps and the Atiyah class of dg manifolds March 17 10:30 - 11:30

    Mathieu Stienon: Formal exponential maps and the Atiyah class of dg manifolds

  • Domenico Fiorenza: $L_infty$ morphisms between twisted Courant $r$-Lie algebras and untwisted Courant $(r+1)$-Lie algeb March 18 10:30 - 11:30

    Domenico Fiorenza: $L_infty$ morphisms between twisted Courant $r$-Lie algebras and untwisted Courant $(r+1)$-Lie algeb

  • Noriaki Ikeda: Hamiltonian Lie algebroids: physical applications and cohomological descriptions March 19 10:30 - 11:30

    Noriaki Ikeda: Hamiltonian Lie algebroids: physical applications and cohomological descriptions

  • Chris Hull: Quantum Magnetic Monopoles and Hodge Theory March 20 14:30 - 15:30

    Chris Hull: Quantum Magnetic Monopoles and Hodge Theory

  • Stefano Ronchi : Higher cotangent groupoids March 21 10:30 - 11:30

    Stefano Ronchi : Higher cotangent groupoids

  • Marco Gualtieri:  Groupoids and Generalized Kahler geometry (mini-course), lecture 1 March 25 10:30 - 11:30

    Marco Gualtieri:  Groupoids and Generalized Kahler geometry (mini-course), lecture 1

  • Marco Gualtieri : Groupoids and Generalized Kahler geometry (mini-course), lecture 2 March 26 10:30 - 11:30

    Marco Gualtieri : Groupoids and Generalized Kahler geometry (mini-course), lecture 2

  • Marco Gualtieri:  Groupoids and Generalized Kahler geometry (mini-course), lecture 3 March 27 10:30 - 11:30

    Marco Gualtieri:  Groupoids and Generalized Kahler geometry (mini-course), lecture 3

  • Caleb Jonker: Generalized Kähler-Ricci flow as a Hamiltonian deformation March 28 10:30 - 11:30

    Caleb Jonker: Generalized Kähler-Ricci flow as a Hamiltonian deformation

  • Thomas Weber: Noncommutative differential calculi via Hopf algebraic methods March 28 14:30 - 15:30

    Thomas Weber: Noncommutative differential calculi via Hopf algebraic methods

  • Workshop, Glenn Barnich: Model spaces as constrained Hamiltonian systems I. Application to SU(2) March 31 09:30 - 10:30

    Workshop, Glenn Barnich: Model spaces as constrained Hamiltonian systems I. Application to SU(2)

  • Workshop, Mathai Varghese:  T-Duality with H-Flux for sigma models March 31 11:00 - 12:00

    Workshop, Mathai Varghese:  T-Duality with H-Flux for sigma models

  • Workshop, Daniel Álvarez : Symplectic 2-groupoids and Courant algebroids over homogenous spaces. March 31 13:30 - 14:30

    Workshop, Daniel Álvarez : Symplectic 2-groupoids and Courant algebroids over homogenous spaces.

  • Workshop, Maxim Grigoriev: Background fields and (super)symmetries in the presymplectic BV-AKSZ  approach. April 01 09:30 - 10:30

    Workshop, Maxim Grigoriev: Background fields and (super)symmetries in the presymplectic BV-AKSZ  approach.

  • Workshop, Ivo Sachs: A BV action from super moduli space April 01 11:00 - 12:00

    Workshop, Ivo Sachs: A BV action from super moduli space

  • Workshop, Ping Xu: Noncommutative Calculus for DG Manifolds April 02 09:30 - 10:30

    Workshop, Ping Xu: Noncommutative Calculus for DG Manifolds

  • Workshop, Niels Kowalzig: Higher structures on homology groups April 02 11:00 - 12:00

    Workshop, Niels Kowalzig: Higher structures on homology groups

  • Workshop, Maor Ben-Shahar: Color-Kinematics and Double copy from BV. April 03 09:30 - 10:30

    Workshop, Maor Ben-Shahar: Color-Kinematics and Double copy from BV.

  • Workshop, Nathan Berkovits: Equivalence Proof of Pure Spinor and Ramond-Neveu-Schwarz Superstring Amplitudes April 03 11:00 - 12:00

    Workshop, Nathan Berkovits: Equivalence Proof of Pure Spinor and Ramond-Neveu-Schwarz Superstring Amplitudes

  • Workshop, Anton Alekseev: Batalin-Vilkovisky structures on moduli of flat connections April 03 13:30 - 14:30

    Workshop, Anton Alekseev: Batalin-Vilkovisky structures on moduli of flat connections

  • Workshop: Mykola Dedushenko: Deformations of contact manifolds and CFT April 03 15:00 - 16:00

    Workshop: Mykola Dedushenko: Deformations of contact manifolds and CFT

  • Workshop, Victor Mishnyakov: Refined Matrix Models and DIM Recursion Relations April 04 09:30 - 10:30

    Workshop, Victor Mishnyakov: Refined Matrix Models and DIM Recursion Relations

  • Workshop, Hitoshi Konno: Elliptic Quantum Groups and Geometry of Quiver Varieties April 04 11:00 - 12:00

    Workshop, Hitoshi Konno: Elliptic Quantum Groups and Geometry of Quiver Varieties

  • Nikita Nekrasov: The Count of Instantons (mini-course), lecture 1 April 07 10:30 - 11:30

    Nikita Nekrasov: The Count of Instantons (mini-course), lecture 1

  • Nikita Nekrasov: The Count of Instantons (mini-course), lecture 2 April 08 10:30 - 11:30

    Nikita Nekrasov: The Count of Instantons (mini-course), lecture 2

  • Nikita Nekrasov: The Count of Instantons (mini-course), lecture 3 April 09 10:30 - 11:30

    Nikita Nekrasov: The Count of Instantons (mini-course), lecture 3

  • Konstantin Wernli: Cutting, gluing and functoriality in perturbative scalar field theory April 10 10:30 - 11:30

    Konstantin Wernli: Cutting, gluing and functoriality in perturbative scalar field theory

  • Ivan Dneprov: Background fields in the presymplectic BV-AKSZ formalism. April 11 10:30 - 11:30

    Ivan Dneprov: Background fields in the presymplectic BV-AKSZ formalism.

  • Andrey Losev: Towards 2-dimensional Kontsevich-Manin numbers April 14 14:30 - 15:30

    Andrey Losev: Towards 2-dimensional Kontsevich-Manin numbers

  • Leon Menger : Homotopy Transfer from Gauge-fixed BF Theory April 16 14:30 - 15:30

    Leon Menger : Homotopy Transfer from Gauge-fixed BF Theory

  • Chiara Esposito: Equivariant formality and reduction April 17 10:30 - 11:30

    Chiara Esposito: Equivariant formality and reduction

  • Andreas Swerdlow: Morphisms of Derived Poisson Manifolds and Thick Morphisms April 24 14:30 - 15:30

    Andreas Swerdlow: Morphisms of Derived Poisson Manifolds and Thick Morphisms

Recordings

Participants

Name University Country Arrival and Departure
Anton
Alekseev 		University: University of Geneva Country: Switzerland Arrival and Departure: Mar 31 - Apr 4
Daniel
Álvarez 		University: University of Toronto Country: Canada Arrival and Departure: Mar 15 - Apr 3
Paolo
Aschieri 		University: Univ.Piemonte Orientale Country: Italy Arrival and Departure: Mar 8 - Mar 28
Glenn
Barnich 		University: Brussels U. Country: Belgium Arrival and Departure: Mar 30 - Apr 10
Maor
Ben-Shahar 		University: MIT Country: United States Arrival and Departure: Mar 14 - Apr 25
Nathan
Berkovits 		University: São Paulo State University Country: Brazil Arrival and Departure: Mar 31 - Apr 5
Christian
Blohmann 		University: Max Planck Institute, Bonn Country: Germany Arrival and Departure: Feb 9 - Mar 2 (1st visit)
Christian
Blohmann 		University: Max Planck Institute, Bonn Country: Germany Arrival and Departure: Mar 23 - Apr 13 (2nd visit)
Irina 
Bobrova 		University: MPI Leipzig Country: Germany Arrival and Departure: Jan 14 - Mar 9
Eugenia
Boffo 		University: Comenius University Bratislav Country: Slovakia Arrival and Departure: Jan 27 - Apr 25
Francesco
Bonechi 		University: Istituto Nazionale di Fisica Nucleare Country: Italy Arrival and Departure: Jan 15 - Apr 25
Henrique
Bursztyn 		University: IMPA Country: Brazil Arrival and Departure: Jan 19 - Jan 24
Alexander
Buryak 		University: HSE, Moscow, Russia (ONLINE) Country: Russia Arrival and Departure: Jan 19 - Jan 25
Alejandro
Cabrera 		University: UFRJ, Brazil Country: Brazil Arrival and Departure: Jan 19 - Jan 26 (1st visit)
Alejandro
Cabrera 		University: UFRJ, Brazil Country: Brazil Arrival and Departure: Feb 2 - Feb 8 (2nd visit)
Giovanni
Canepa 		University: University of Geneva Country: Switzerland Arrival and Departure: Jan 19 - Feb 7
Giovanni
Canepa 		University: University of Geneva Country: Switzerland Arrival and Departure: Mar 11 - Apr 10
David
Carchedi 		University: George Mason University Country: United States Arrival and Departure: Jan 15 - Jan 25
Pedro
Carvalho Silva 		University: University of Hradec Králové Country: Czechia Arrival and Departure: Jan 28 - Apr 14
Luca
Cassia 		University: Melbourne Univ, Australia Country: Austria Arrival and Departure: Mar 11 - Mar 27
Alberto
Cattaneo 		University: University of Zurich Country: Switzerland Arrival and Departure: Jan 19 - Jan 31 (1st visit)
Alberto
Cattaneo 		University: University of Zurich Country: Switzerland Arrival and Departure: Mar 14 - Mar 19 (2nd visit)
Alberto
Cattaneo 		University: University of Zurich Country: Switzerland Arrival and Departure: Mar 30 - Apr 4 (3rd visit)
Martin
Cederwall 		University: Chalmers Univ. of Technology Country: Sweden Arrival and Departure: Feb 27 - Mar 14
Igor
Chaban 		University: Krichever CAS Country: United States Arrival and Departure: Jan 16 - Feb 7
Sachin
Chauhan 		University: Uppsala University Country: Sweden Arrival and Departure: April 10 - April 25
Nicola
Ciccoli 		University: Università di Perugia Country: Italy Arrival and Departure: Feb 23 - Mar 2 (1st visit)
Nicola
Ciccoli 		University: Università di Perugia Country: Italy Arrival and Departure: Mar 23 - Mar 30 (2nd visit)
Ivan
Contreras 		University: Amherst College Country: United States Arrival and Departure: Mar 15 - Mar 22
Miquel
Cueca Ten 		University: Georg-August-Universitat, Gottingen Country: Germany Arrival and Departure: Jan 26 - Feb 7
Miquel
Cueca Ten 		University: Georg-August-Universitat, Gottingen Country: Germany Arrival and Departure: Mar 30 - Apr 11
Mykola
Dedushenko 		University: Simons Center for Geometry and Physics, USA Country: United States Arrival and Departure: Mar 30 - Apr 6
Michele
Del Zotto 		University: Uppsala University Country: Sweden Arrival and Departure: Jan 15 - Apr 25
Ivan
Dneprov 		University: Mons University Country: Belgium Arrival and Departure: Apr 4 - Apr 25
Chiara
Esposito 		University: University of Salerno Country: Italy Arrival and Departure: Apr 6 - Apr 25
Domenico
Fiorenza 		University: Sapienza University of Rome, Italy Country: Italy Arrival and Departure: Mar 1 - Mar 31
Daniil
Getta 		University: St. Petersburg HSE (ONLINE) Country: Russia Arrival and Departure: Jan 19 - Mar 7
Ezra
Getzler 		University: Northwestern University, Department of Mathematics Country: United States Arrival and Departure: Jan 15 - Apr 25
Alexander
Gorsky 		University: IITP, Moscow Country: Russia Arrival and Departure: Feb 1 - Feb 15
Pietro
Grassi 		University: Universit`a del Piemonte Orientale Country: Italy Arrival and Departure: Feb 2 - Feb 14
Maxim
Grigoriev 		University: Mons University Country: Belgium Arrival and Departure: Mar 23 - Apr 19
Maxim
Gritskov  		University: St. Petersburg HSE Country: Russia Arrival and Departure: Jan 19 - Apr 5
Marco
Gualtieri 		University: Toronto U, Canada Country: Canada Arrival and Departure: Mar 18 - Mar 29
Kunal
Gupta 		University: Uppsala University Country: Sweden Arrival and Departure: Jan 15 - Apr 25
Pedram
Hekmati 		University: University of Aukland Country: New Zealand Arrival and Departure: Mar 20 - Apr 6
Olaf
Hohm 		University: Humboldt University Berlin Country: Germany Arrival and Departure: Mar 10 - Mar 15
Chris
Hull 		University: Imperial College, UK Country: United Kingdom Arrival and Departure: Feb 17 - Mar 28
Noriaki
Ikeda 		University: Ritsumeikan Universit Country: Japan Arrival and Departure: Feb 18 - Apr 1
Shuhan
Jiang  		University: Max Planck Institute for Mathematics in the Sciences Country: Germany Arrival and Departure: Jan 15 - Apr 25
Henrik
Johansson 		University: Uppsala University Country: Sweden Arrival and Departure: Jan 27 - Mar 28
Caleb
Jonker 		University: University of Toronto Country: Canada Arrival and Departure: Jan 26 - Apr 25
Hitoshi
Konno 		University: Tokyo University Marine Country: Japan Arrival and Departure: Mar 19 - Apr 25
Niels
Kowalzig 		University: University of Rome Country: Italy Arrival and Departure: Mar 31 - Apr 25
Si
Li 		University: Tsinghua University Country: China Arrival and Departure: Jan 15 - Feb 15
Ulf
Lindström 		University: Uppsala University Country: Sweden Arrival and Departure: Jan 15 - Apr 25
Henry
Liu 		University: Kavli IPMU Tokyo Country: Japan Arrival and Departure: Jan 15 - Feb 15
Pietro
Longhi 		University: Uppsala University Country: Sweden Arrival and Departure: Jan 15 - Apr 25
Andrey
Losev 		University: HSE, Moscow, Russia Country: Russia Arrival and Departure: Apr 8 - Apr 15
Roman
Mauch 		University: Uppsala University Country: Sweden Arrival and Departure: Jan 15 - Apr 25
Leon
Menger 		University: University of Notre Dame Country: United States Arrival and Departure: Jan 15 - Apr 25
Andrei
Mikhailov 		University: Sao Paulo, IFT Country: Brazil Arrival and Departure: Apr 4 - Apr 15
Victor
Mishnyakov 		University: Nordita, Stockholm Country: Sweden Arrival and Departure: Jan 15 - Apr 25
Antonio Michele
Miti 		University: Università La sapienza Roma Country: Italy Arrival and Departure: Mar 10 - Mar 27
Nikita
Nekrasov 		University: Simons Center for Geometry and Physics Country: United States Arrival and Departure: Mar 25 - Apr 25
Denis 
Nesterov 		University: ETH Zurich Country: Switzerland Arrival and Departure: Jan 19 - Feb 7
Jakob
Palmkvist 		University: Chalmers Univ. of Technology Country: Sweden Arrival and Departure: Feb 21 - Feb 28
Jakob
Palmkvist 		University: Chalmers Univ. of Technology Country: Sweden Arrival and Departure: Apr 14 - Apr 25 (2nd visit)
Nathalie
Paquette 		University: University of Washington (ONLINE) Country: United States Arrival and Departure: Mar 20 - Apr 10
Vera
Posch 		University: Trinity College, Dublin Country: Ireland Arrival and Departure: Mar 2 - Mar 12 (1st visit)
Vera
Posch 		University: Trinity College, Dublin Country: Ireland Arrival and Departure: Apr 17 - Apr 25 (2nd visit)
Jan
Pulmann 		University: University of Edinburgh Country: United Kingdom Arrival and Departure: Jan 28 - Mar 9
Jan
Pulmann 		University: University of Edinburgh Country: United Kingdom Arrival and Departure: Mar 27 - Apr 9
Surya
Raghavendran 		University: University of Edinburgh Country: United Kingdom Arrival and Departure: Mar 9 - Mar 15
Kasia
Rejzner 		University: University of York Country: United Kingdom Arrival and Departure: Jan 22 - Feb 3
Stefano
Ronchi 		University: University of Göttingen Country: Germany Arrival and Departure: Jan 14 - Apr 26
Vladimir
Roubtsov 		University: Universitet of Angers Country: France Arrival and Departure: Apr 6 - Apr 16
Ingmar
Saberi 		University: LMU Munich Country: Germany Arrival and Departure: Feb 7 - Feb 15
Ivo
Sachs 		University: Munich U, Germany Country: Germany Arrival and Departure: Mar 3 - Mar 17 (1st visit)
Ivo
Sachs 		University: Munich U, Germany Country: Germany Arrival and Departure: Mar 29 - Apr 14 (2nd visit)
Michele
Schiavina 		University: Pavia U, Italy Country: Italy Arrival and Departure: Jan 19 - Jan 31
Ekaterina
Shemyakova 		University: University of Toledo Country: United States Arrival and Departure: Feb 9 - Mar 8
Dima
Sorokin 		University: INFN, Padova Country: Italy Arrival and Departure: Mar 9 - Mar 22
Thomas
Strobl 		University: Lyon U Country: France Arrival and Departure: Mar 1 - Mar 10
Pelle
Steffens 		University: Technische Universität München Country: Germany Arrival and Departure: Jan 15 - Feb 7
Mathieu
Stienon 		University: Penn State U, USA Country: United States Arrival and Departure: Feb 17 - Apr 25
Tim
Sulimov 		University: St. Petersburg Steklov Country: optimus260@gmail.com Arrival and Departure: Jan 19 - Feb 28
Fridrich
Valach 		University: University of Hertfordshire Country: United Kingdom Arrival and Departure: Jan 27 - Apr 12
Andreas
Swerdlow 		University: The University of Manchester Country: United Kingdom Arrival and Departure: Mar 12 - Mar 21 (1st visit)
Andreas
Swerdlow 		University: The University of Manchester Country: United Kingdom Arrival and Departure: Apr 11 - Apr 25 (2nd visit)
Brenno Carlini
Vallilo 		University: Andres Bello Natl. U. Country: Chile Arrival and Departure: Mar 22 - Apr 5
Mathai
Varghese 		University: University of Adelaide Country: Australia Arrival and Departure: Mar 26 - Apr 7
Ted
Voronov 		University: Manchester U,UK Country: United Kingdom Arrival and Departure: Feb 9 - Mar 8
Stefan
Waldmann 		University: JMU Würzburg Country: Germany Arrival and Departure: Apr 6 - Apr 25
Minghao
Wang 		University: Boston Univ Country: United States Arrival and Departure: Jan 15 - Jan 25
Konstantin
Wernli 		University: University of Southern Denmark Country: Denmark Arrival and Departure: Jan 19 - Jan 31
Konstantin
Wernli 		University: University of Southern Denmark Country: Denmark Arrival and Departure: Apr 4 - Apr 19
Owen G
William 		University: University of Massachusetts, USA (ONLINE) Country: United States Arrival and Departure: Mar 1 - Mar 15
Brian
Williams 		University: Boston U, USA Country: United States Arrival and Departure: Feb 6 - Feb 12
Ping
Xu 		University: Penn State University Country: United States Arrival and Departure: Feb 19 - Apr 3
Maxim
Zabzine 		University: Uppsala University Country: Sweden Arrival and Departure: Jan 15 - Apr 15
Polina
Zakorko  		University: Technion Country: Russia / Israel Arrival and Departure: Apr 1 - Apr 25
Yegor
Zenkevich 		University: Edinburgh University Country: United Kingdom Arrival and Departure: Jan 19 - Jan 24 (1st visit)
Yegor
Zenkevich 		University: Edinburgh University Country: United Kingdom Arrival and Departure: Feb 12 - Mar 2 (2nd visit)
Guodong
Zhou 		University: School of Mathematical Sciences Country: China Arrival and Departure: Jan 19 - Jan 24 (1st visit)

Preprints

  5. Non-invertible symmetries of two-dimensional Non-Linear Sigma Models - Chris Hull Guillermo Arias-Tamargo Maxwell Velásquez Cotini Hutt
  6. katana - katana katana katana katana katana katana katana katana katana katana katana katana