Amplitudes and Algebraic Geometry
The ESI program Amplitudes and Algebraic Geometry aims to develop new mathematical paradigms for the fundamental interactions of nature by bringing together physicists working on scattering amplitudes and mathematicians with expertise in real, complex, tropical and computational algebraic geometry. The program features several mini-courses, two one-week topical workshops, as well as two weeks with a light program to enable collaborations among the participants.
Schedule (see below for details of topics):
Week 1, Feb 16-20: Mini-Courses I
Week 2, Feb 23-27: Light program (approx. one talk per day)
Week 3, Mar 2-6: Mini-Courses II
Week 4, Mar 9-13: Workshop I
Week 5, Mar 16-20: Light program (approx. one talk per day)
Week 6, Mar 23-27: Workshop II
Mini-Courses I. Expected lecturers include:
Melissa Sherman-Bennet: Amplituhedra
Bernd Sturmfels: Kinematic Varieties
Lorenzo Tancredi: Feynman Integrals
Mini-Courses II. Expected lecturers include:
Francis Brown: Introduction to Motivic and Mellin periods
Daniele Dorigoni: Modular Forms and AdS/CFT
James Drummond: Cluster Algebras
Samuel Grushevsky: Theta Functions and Moduli Spaces
Workshop I: Algebra and combinatorics of amplitudes, is co-organized by Thomas Lam, Erik Panzer, and Anastasia Volovich. Topics covered include: cluster algebras, amplituhedra and surfacehedra, tropical geometry, as well as positive and binary geometry.
Workshop II: Mathematical structures of amplitudes, is co-organized by Axel Kleinschmidt, Martin Raum, and Leila Schneps. It focusses on the mathematical properties of Feynman and string amplitudes. Topics covered include: Feynman/string integrals, their differential equations, (co-)homology theories and intersection numbers; computational aspects of periods, Hodge theory, theta functions, Siegel modular forms, and moduli spaces of curves and abelian varieties.
Funded by the European Union (ERC, MaScAmp, 101167287 and UNIVERSE PLUS, 101118787). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council Executive Agency. Neither the European Union nor the granting authority can be held responsible for them.
Feb. 16, 2026
Feb. 17, 2026
Feb. 18, 2026
Feb. 19, 2026
Feb. 20, 2026
Feb. 23, 2026
Feb. 24, 2026
Feb. 25, 2026
Feb. 26, 2026
Feb. 27, 2026
March 2, 2026
March 3, 2026
March 4, 2026
March 5, 2026
March 6, 2026
March 9, 2026
March 10, 2026
March 11, 2026
March 12, 2026
March 13, 2026
March 16, 2026
March 17, 2026
March 18, 2026
March 19, 2026
March 20, 2026
March 23, 2026
March 24, 2026
March 25, 2026
March 26, 2026
March 27, 2026
09:00 — 09:20
Registration
09:20 — 09:30
Welcome and information
09:30 — 10:45
Bernd Sturmfels (MPI MIS, Leipzig)
Kinematic Varieties I:
Kinematic Varieties I:
10:45 — 11:15
Coffee break
11:15 — 12:30
Lorenzo Tancredi (TU Munich)
Feynman Integrals I: Feynman integrals and integration by parts identities
Feynman Integrals I: Feynman integrals and integration by parts identities
12:30 — 14:15
Lunch break
14:15 — 15:30
Melissa Sherman-Bennett (UC Davis)
Amplituhedra I
Amplituhedra I
15:30 — 16:00
Coffee break
16:00 — 16:45
Q & A: Kinematic Varieties
09:30 — 10:45
Bernd Sturmfels (MPI MIS, Leipzig)
Kinematic Varieties II:
Kinematic Varieties II:
10:45 — 11:15
Coffee break
11:15 — 12:30
Lorenzo Tancredi (TU Munich)
Feynman Integrals II: Parametric representations (Schwinger, Feynman and Baikov)
Feynman Integrals II: Parametric representations (Schwinger, Feynman and Baikov)
12:30 — 14:15
Lunch break
14:15 — 15:30
Melissa Sherman-Bennett (UC Davis)
Amplituhedra II
Amplituhedra II
15:30 — 16:00
Coffee break
16:00 — 16:45
Q & A: Feynman Integrals
09:30 — 10:45
Bernd Sturmfels (MPI MIS, Leipzig)
Kinematic Varieties III:
Kinematic Varieties III:
10:45 — 11:15
Coffee break
11:15 — 12:30
Lorenzo Tancredi (TU Munich)
Feynman Integrals III: Differential equations and canonical bases
Feynman Integrals III: Differential equations and canonical bases
12:30 — 12:45
Group picture
12:45 — 14:15
Lunch break
14:15 — 15:30
Melissa Sherman-Bennett (UC Davis)
Amplituhedra III
Amplituhedra III
15:30 — 16:00
Coffee break
16:00 — 16:45
Q & A: Amplituhedra
09:30 — 10:45
Bernd Sturmfels (MPI MIS, Leipzig)
Kinematic Varieties IV:
Kinematic Varieties IV:
10:45 — 11:15
Coffee break
11:15 — 12:30
Lorenzo Tancredi (TU Munich)
Feynman Integrals IV: Integrand analysis for polylogs and beyond
Feynman Integrals IV: Integrand analysis for polylogs and beyond
12:30 — 14:15
Lunch break
14:15 — 15:30
Melissa Sherman-Bennett (UC Davis)
Amplituhedra IV
Amplituhedra IV
15:30 — 16:00
Coffee break
16:00 — 16:45
Anna-Laura Sattelberger (MPI-MiS Leipzig)
Math-physics communication
09:30 — 11:00
Problem session
Kinematic Varieties and Feynman Integrals
11:00 — 11:30
Coffee break
11:30 — 12:15
Problem session
Amplituhedra
12:15 — 23:59
Lunch break and free afternoon
09:00 — 09:30
Registration
09:30 — 10:30
Introductory Session
10:30 — 11:30
Zachary Greenberg (MPI MIS, Leipzig)
Classifying bounded ratios on cluster algebras with U-variables
Classifying bounded ratios on cluster algebras with U-variables
12:00 — 13:30
Lunch break
14:30 — 15:00
Coffee break
10:30 — 11:30
Emiel Claasen (MPIGP, Potsdam)
Single-valued periods in superstring amplitudes at one loop
Single-valued periods in superstring amplitudes at one loop
12:00 — 13:30
Lunch break
14:30 — 15:00
Coffee break
15:00 — 15:15
Poster session
Cathrin Semper (U of Bonn)
Canonical differential equations and intersection matrices
Canonical differential equations and intersection matrices
15:15 — 15:30
Poster Session
Sven Stawinski (U of Bonn)
Symmetry Relations between Feynman Integrals - Three Perspectives
Symmetry Relations between Feynman Integrals - Three Perspectives
15:30 — 15:45
Poster Session
Nicolas Alexander Weiss (MPI MIS, Leipzig)
Connection Matrices in Macaulay2
Connection Matrices in Macaulay2
10:30 — 11:30
Francesca Zaffalon (MPI MIS, Leipzig)
How to stab a polytope
How to stab a polytope
12:00 — 12:15
Group picture
12:15 — 13:30
Lunch break
14:30 — 15:00
Coffee break
16:00 — 17:00
Livestream UNIVERSE+ seminar
Thomas Lam (University of Michigan): A combinatorial model for higher tropical Grassmannians
10:30 — 11:30
Marvin Anas Hahn (Trinity College, Dublin)
Enumerative geometry and integrability
Enumerative geometry and integrability
12:00 — 13:30
Lunch break
14:30 — 15:00
Coffee break
10:30 — 11:30
Didina Serban (IPhT Saclay)
Correlation functions in integrable supersymmetric four-dimensional gauge theories
Correlation functions in integrable supersymmetric four-dimensional gauge theories
12:00 — 13:30
Lunch break
14:30 — 15:00
Coffee break
09:00 — 09:20
Registration
09:20 — 09:30
Welcome and information
09:30 — 10:45
Daniele Dorigoni (Durham U)
Modular Forms and AdS/CFT, I
Modular Forms and AdS/CFT, I
10:45 — 11:15
Coffee break
11:15 — 12:30
Samuel Grushevsky (Stony Brook U, New York)
Theta Functions and Moduli Spaces, I
Theta Functions and Moduli Spaces, I
14:15 — 15:00
Q & A Daniele Dorigoni (Durham U)
15:00 — 15:30
Coffee break
15:30 — 16:45
James Drummond (U Southampton)
Cluster Algebras, I
Cluster Algebras, I
09:30 — 10:45
Daniele Dorigoni (Durham U)
Modular Forms and AdS/CFT, II
Modular Forms and AdS/CFT, II
10:45 — 11:15
Coffee break
11:15 — 12:30
Samuel Grushevsky (Stony Brook U, New York)
Theta Functions and Moduli Spaces, II
Theta Functions and Moduli Spaces, II
14:15 — 15:30
James Drummond (U Southampton)
Cluster Algebras, II
Cluster Algebras, II
15:30 — 16:00
Coffee break
16:00 — 16:30
Q & A Samuel Grushevsky (Stony Brook U, New York)
09:30 — 10:45
Daniele Dorigoni (Durham U)
Modular Forms and AdS/CFT, III
Modular Forms and AdS/CFT, III
10:45 — 11:15
Coffee break
11:15 — 12:30
Francis Brown (U of Oxford)
Introduction to Motivic and Mellin periods, I
Introduction to Motivic and Mellin periods, I
12:30 — 12:45
Group picture
14:15 — 15:30
Problem Session Daniele Dorigoni (Durham U)
15:30 — 16:00
Coffee break
16:00 — 16:45
Q & A James Drummond (U of Southampton)
09:30 — 10:45
Francis Brown (U of Oxford)
Introduction to Motivic and Mellin periods, II
Introduction to Motivic and Mellin periods, II
10:45 — 11:15
Coffee break
11:15 — 12:30
Samuel Grushevsky (Stony Brook U, New York)
Theta Functions and Moduli Spaces, III
Theta Functions and Moduli Spaces, III
14:15 — 15:30
James Drummond (U Southampton)
Cluster Algebras, III
Cluster Algebras, III
15:30 — 16:00
Coffee break
16:00 — 16:45
Math-physics communication
09:30 — 10:30
Problem Session Samuel Grushevsky (Stony Brook U, New York)
10:30 — 11:15
Coffee break
11:15 — 12:15
Problem Session James Drummond (U of Southampton)
09:00 — 09:30
registration
09:30 — 10:30
Simon Telen (MPI MIS, Leipzig)
Toric Amplitudes and Universal Adjoints
Toric Amplitudes and Universal Adjoints
10:30 — 10:45
Coffee break
10:45 — 11:45
Veronica Calvo Cortes (MPI MIS, Leipzig)
Positive charts of toric varieties
Positive charts of toric varieties
11:45 — 12:45
Saiei-Jaeyeong Matsubara-Heo (Tohoku U)
Reciprocal A-determinants
Reciprocal A-determinants
12:45 — 14:15
Lunch break
14:15 — 15:15
Clément Dupont (Université de Montpellier)
Positive geometries and canonical forms via mixed Hodge theory
Positive geometries and canonical forms via mixed Hodge theory
15:15 — 15:45
Coffee break
15:45 — 16:45
Claudia He Yun (Arctic U)
Positive del Pezzo geometry
Positive del Pezzo geometry
09:00 — 09:30
registration
09:30 — 10:30
Jacob Bourjaily (Penn State U)
Improving Tools for Perturbation Theory
Improving Tools for Perturbation Theory
10:30 — 10:45
Coffee break
10:45 — 11:45
Paul Heslop (Durham U)
The (loop) amplituhedron, squared amplituhedron and correlahedron.
The (loop) amplituhedron, squared amplituhedron and correlahedron.
11:45 — 12:45
Matteo Parisi (OIST, Okinawa)
Landau Analysis on the Grassmannian
Landau Analysis on the Grassmannian
12:45 — 14:15
Lunch break
14:15 — 15:15
via zoom
Chaim Even-Zohar (Technion Haifa)
Tilings of the Amplituhedron beyond m=4
Tilings of the Amplituhedron beyond m=4
15:15 — 15:45
Coffee break
15:45 — 16:45
via zoom
Jaroslav Trnka (UC Davis)
Negative Geometry Expansion of Scattering Amplitudes
Negative Geometry Expansion of Scattering Amplitudes
09:15 — 10:15
Michael Borinsky (Perimeter Institute, Waterloo)
Tropical(ized) quantum field theory
Tropical(ized) quantum field theory
10:15 — 10:45
Coffee break
10:45 — 11:45
Yelena Mandelshtam (U of Michigan, Ann Arbor)
Normal Fans of Voronoi Cells and Theta Functions
Normal Fans of Voronoi Cells and Theta Functions
11:45 — 12:45
Viktoriia Borovik (MPI MIS, Leipzig)
Graphical Scattering Equations
Graphical Scattering Equations
12:45 — 15:00
Lunch break
15:00 — 15:15
Poster session
Peter Spacek (MPI MIS, Leipzig)
Type-independent canonical mirror models for cominuscule homogeneous spaces
Type-independent canonical mirror models for cominuscule homogeneous spaces
15:15 — 15:30
Poster session
Dawei Shen (U of Michigan, Ann Arbor)
The ABCT Variety V(3,n) is a Positive Geometry
The ABCT Variety V(3,n) is a Positive Geometry
16:00 — 17:00
Rainer Sinn (U Leipzig)
Is the amplituhedron a positive geometry?
Is the amplituhedron a positive geometry?
09:30 — 10:30
Ömer Gürdoğan (U Southampton)
Cluster algebraic structures in Feynman integrals
Cluster algebraic structures in Feynman integrals
10:30 — 10:45
Coffee break
10:45 — 11:45
James Drummond (U Southampton)
Correlators of multiple light-like Wilson loops
Correlators of multiple light-like Wilson loops
11:45 — 12:45
Hadleigh Frost (IAS, Princeton)
The cosmological combinatorics of wavefunctions and correlators
The cosmological combinatorics of wavefunctions and correlators
12:45 — 14:15
Lunch break
14:15 — 15:15
Livia Ferro (U of Hertfordshire)
Amplitude tools for cosmological correlators: part I
Amplitude tools for cosmological correlators: part I
15:15 — 15:45
Coffee break
15:45 — 16:45
Tomasz Lukowski (U of Hertfordshire)
Amplitude tools for cosmological correlators: part II
Amplitude tools for cosmological correlators: part II
09:15 — 10:15
Hannah Tillmann-Morris (KCL, London)
Pellytopes and binary geometries
Pellytopes and binary geometries
10:15 — 10:45
Coffee break
10:45 — 11:45
Federico Ardila (QMU London)
Combinatorics of the cosmohedron
Combinatorics of the cosmohedron
11:45 — 17:00
Lunch break / free afternoon / departure
09:00 — 09:30
Registration
09:30 — 10:30
Introductory session
10:30 — 11:30
Marcus Spradlin (Brown U, Providence)
Cluster Algebras and (Mostly Tree) Amplitudes
Cluster Algebras and (Mostly Tree) Amplitudes
14:30 — 15:00
Coffee break
10:30 — 11:30
Carlos Rodriguez (MPI MIS, Leipzig)
Hypergeometric Integrals on a Punctured Riemann Surface
Hypergeometric Integrals on a Punctured Riemann Surface
14:30 — 15:00
Coffee break
15:00 — 15:15
Poster session
Shun-Qing Zhang (MPP, Munich)
Tropical Integration for Gauge Theory Feynman Integrals
Tropical Integration for Gauge Theory Feynman Integrals
15:15 — 15:30
Poster session
Nicolas Alexander Weiss (MPI MIS, Leipzig)
Exact Volumes of Semi-Algebraic Convex Bodies
Exact Volumes of Semi-Algebraic Convex Bodies
15:30 — 15:45
Poster session
Antonela Matijasic (U Mainz)
New algorithm for Feynman integral reduction and ε-factorised differential equations
New algorithm for Feynman integral reduction and ε-factorised differential equations
15:45 — 16:00
Poster session
Joris Koefler (MPI MIS, Leipzig)
Positive Geometries of Positive Genus
Positive Geometries of Positive Genus
10:30 — 11:30
Georgios Papathanasiou (National and Kapodistrian U of Athens)
Novel cluster-algebraic letters for six- and five-point QCD processes
Novel cluster-algebraic letters for six- and five-point QCD processes
14:30 — 15:00
Coffee break
10:30 — 11:30
Qinglin Yang (MPP, Munich)
A First Look at Bootstrapping QCD Amplitudes
A First Look at Bootstrapping QCD Amplitudes
14:30 — 15:00
Coffee break
10:30 — 11:30
Albrecht Klemm (U of Sheffield)
Black hole scattering, Feynman graph expansions and Calabi-Yau geometries
Black hole scattering, Feynman graph expansions and Calabi-Yau geometries
14:30 — 15:00
Coffee break
09:00 — 09:30
Registration
09:30 — 10:30
Stefan Weinzierl (U Mainz)
The geometry of Feynman integrals
The geometry of Feynman integrals
10:30 — 10:45
Coffee break
10:45 — 11:45
Christoph Nega (AEI Potsdam)
Generalized third kind forms and their period integrals in Feynman integrals
Generalized third kind forms and their period integrals in Feynman integrals
11:45 — 12:45
Vsevolod Chestnov (U of Oxford)
Singularities and annihilators of Feynman integrals
Singularities and annihilators of Feynman integrals
12:45 — 14:15
Lunch break
14:15 — 15:15
Elia Mazzucchelli (MPP, Munich)
Positive Geometries as Dual Volumes
Positive Geometries as Dual Volumes
15:15 — 15:45
Coffee break
15:45 — 16:45
Felix Tellander (Trinity College, Dublin)
Rank-jumping, resonance, and restrictions of Feynman integrals
Rank-jumping, resonance, and restrictions of Feynman integrals
09:00 — 09:30
registration
09:30 — 10:30
Johannes Broedel (ETH Zurich)
Single-valued polylogarithms for all genera
Single-valued polylogarithms for all genera
10:30 — 10:45
Coffee break
10:45 — 11:45
Federico Zerbini (UNED)
Relating spaces of polylogarithms on Riemann surfaces
Relating spaces of polylogarithms on Riemann surfaces
11:45 — 12:45
12:45 — 14:15
Lunch break
14:15 — 15:15
Brandon Williams (U Heidelberg)
Two families of K3 surfaces attached to root lattices
Two families of K3 surfaces attached to root lattices
15:15 — 15:45
Coffee break
15:45 — 16:45
Peter Spacek (MPI MIS, Leipzig)
Canonical mirror models for cominuscule homogeneous spaces
Canonical mirror models for cominuscule homogeneous spaces
09:15 — 10:15
Claudia Rella (IHES, Bures-sur-Yvette)
Resurgence and arithmetic of non-perturbative effects
Resurgence and arithmetic of non-perturbative effects
10:15 — 10:45
Coffee break
10:45 — 11:45
David Broadhurst (Open University)
Resurgent Lambert series in quantum field theory and string theory (plus hyper-asymptotics from the cosmohedron)
Resurgent Lambert series in quantum field theory and string theory (plus hyper-asymptotics from the cosmohedron)
11:45 — 12:45
Eric Pichon-Pharabod (MPI MIS, Leipzig)
Numerical computations of periods
Numerical computations of periods
12:45
Lunch break and free afternoon
19:00 — 22:00
Workshop Dinner
09:15 — 10:15
Pierre Vanhove (IPhT Saclay)
Reflexive Polytopes and the Convergence of Feynman Integrals
Reflexive Polytopes and the Convergence of Feynman Integrals
10:15 — 10:45
Coffee break
10:45 — 11:45
Oliver Schnetz (U Hamburg)
New developments in the theory of graphical functions
New developments in the theory of graphical functions
11:45 — 12:45
Anastasia Volovich (Brown U, Providence)
Mellinology for Energy Correlators
Mellinology for Energy Correlators
12:45 — 14:15
Lunch break
14:15 — 15:15
Annika Burmester (Bielefeld U)
Hopf algebra structures for multiple (q-)zeta values
Hopf algebra structures for multiple (q-)zeta values
15:15 — 15:45
Coffee break
15:45 — 16:45
Leila Schneps (CNRS, Paris)
Multiple zeta values, Grothendieck-Teichmüller theory and higher genus
Multiple zeta values, Grothendieck-Teichmüller theory and higher genus
09:15 — 10:15
Marcella Manivel (U of Minnesota)
Automorphic Differential Operators
Automorphic Differential Operators
10:15 — 10:45
Coffee break
10:45 — 11:45
Andrzej Pokraka (U of Amsterdam)
A diagramatic coaction for FRW power-law cosmological correlators
A diagramatic coaction for FRW power-law cosmological correlators
11:45 — 12:45
Aleksander Shmakov (U Stockholm)
From Partition Functions and Anomalies to L-functions and Secondary Periods
From Partition Functions and Anomalies to L-functions and Secondary Periods
12:45
Lunch break / free afternoon / departure
This event has no subevents associated to it.
Organizers
| Name | Affiliation |
|---|---|
| Daniele Agostini | University of Tübingen |
| Lara Bossinger | Universidad Nacional Autónoma de México |
| Ruth Britto | Trinity College, Dublin |
| Johannes Henn | Max Planck Institute for Physics |
| Jianrong Li | University of Vienna |
| Anna-Laura Sattelberger | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Oliver Schlotterer | Uppsala University |
Attendees
| Name | Affiliation |
|---|---|
| Simonetta Abenda | University of Bologna |
| Niklas Affolter | Vienna University of Technology |
| Ankit Aggarwal | TU Wien |
| Rigers Aliaj | DESY Hamburg |
| Athanasia-Konstantina Angelopoulou | Trinity College, Dublin |
| Federico Ardila | Queen Mary University of London |
| Konstantin Baune | ETH Zürich |
| Gideon Baur | Universität Bonn |
| Manuel Berger | ETH Zurich |
| Mattia Biancotto | Max Planck Institute for Gravitational Physics, Potsdam |
| Jonathan Boretsky | McGill University |
| Michael Borinsky | Perimeter Institute, Waterloo |
| Viktoriia Borovik | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Guillaume Bossard | CNRS & Ecole Polytechnique, Palaiseau |
| Jacob Bourjaily | The Pennsylvania State University |
| David Broadhurst | The Open University |
| Johannes Broedel | ETH Zürich |
| Francis Brown | University of Oxford |
| Nero Budur | KU Leuven |
| Annika Burmester | Bielefeld University |
| Veronica Calvo Cortes | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Livia Campo | University of Vienna |
| Sérgio Carrôlo | Max Planck Institute for Physics |
| Ana-Maria Castravet | University of Versailles Saint-Quentin |
| Türkü Özlüm Çelik | Max Planck Institute, Dresden |
| Vsevolod Chestnov | University of Oxford |
| Emiel Claasen | Max Planck Institute for Gravitational Physics, Potsdam |
| Lucas Dauger | Université de Jussieu |
| Claire de Korte | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Eric D'Hoker | University of California, Los Angeles |
| Sandra Di Rocco | KTH Stockholm |
| Daniele Dorigoni | Durham University |
| James Drummond | University of Southampton |
| Clément Dupont | Université de Montpellier |
| Nick Early | Institute for Advanced Study, Princeton |
| Benjamin Enriquez | Institut de Recherche Mathématique Avancée |
| Chaim Even-Zohar | Technion Haifa |
| Livia Ferro | University of Hertfordshire |
| Claudia Fevola | INRIA Saclay |
| Hadleigh Frost | Institute for Advanced Study, Princeton |
| Jens Funke | Durham University |
| Herbert Gangl | Durham University |
| Alheydis Geiger | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Alessandro Georgoudis | Queen Mary University of London |
| Bruno Gimenez-Umbert | University of Southampton |
| Zachary Greenberg | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Samuel Grushevsky | Stony Brook University |
| Ömer Gürdoğan | University of Southampton |
| Marvin Anas Hahn | Trinity College, Dublin |
| Luke Hamilton | University of Oxford |
| Paul Heslop | Durham University |
| Henrik Johansson | Uppsala University |
| Deepak Kamlesh | Max Planck Institute for Mathematics, Bonn |
| Dani Kaufman | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Adam Keilthy | Trinity College, Dublin |
| Jung-Wook Kim | CERN, Geneva |
| Axel Kleinschmidt | Max Planck Institute for Gravitational Physics, Potsdam |
| Albrecht Klemm | University of Sheffield |
| Joris Koefler | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Christian Krattenthaler | University of Vienna |
| Thomas Lam | University of Michigan |
| Craig Larkin | University of Edinburgh |
| Sangmin Lee | Korea Institute for Advanced Study |
| Franca Lippert | Universität Bonn |
| Tomasz Lukowski | University of Hertfordshire |
| Rourou Ma | University of Science and Technology of China |
| Sara Maggio | Universität Bonn |
| Abhiram Mamandur Kidambi | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Yelena Mandelshtam | University of Michigan |
| Marcella Manivel | University of Minnesota |
| Lionel Mason | University of Oxford |
| Antonela Matijasic | Johannes-Gutenberg Universität Mainz |
| Saiei-Jaeyeong Matsubara-Heo | Tohoku University |
| Elia Mazzucchelli | Max Planck Institute for Physics |
| Andrew McLeod | University of Edinburgh |
| Ulysse Mounoud | Université de Montpellier |
| Sergey Mozgovoy | Trinity College, Dublin |
| Christoph Nega | Albert-Einstein-Institute |
| Erik Panzer | University of Oxford |
| Georgios Papathanasiou | National and Kapodistrian University of Athens |
| Matteo Parisi | Okinawa Institute of Science and Technology |
| Dmitrii Pavlov | Max Planck Institute for Physics |
| Enrico Perron Cabus | Uppsala University |
| Anaelle Pfister | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Eric Pichon-Pharabod | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Sebastian Pögel | University of Zurich |
| Andrzej Pokraka | University of Amsterdam |
| Maria Polackova | University of Edinburgh |
| Jean-Luc Portner | University of Oxford |
| Lizzie Pratt | University of California, Berkeley |
| Prashanth Raman | Max Planck Institute for Physics |
| Martin Raum | Chalmers University of Technology |
| Claudia Rella | Institut des Hautes Etudes Scientifiques |
| Lecheng Ren | Queen Mary University of London |
| Niall Robertson | Trinity College, Dublin |
| Carlos Rodriguez | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Michele Santagata | National Taiwan University |
| Michael Schlosser | University of Vienna |
| Leila Schneps | CNRS Paris |
| Oliver Schnetz | University of Hamburg |
| Florian Seefeld | University of Southern Denmark |
| Cathrin Semper | Universität Bonn |
| Didina Serban | IPhT Saclay |
| Emre Sertöz | Leiden University |
| Dawei Shen | University of Michigan |
| Melissa Sherman-Bennett | University of California, Davis |
| Aleksander Shmakov | University of Stockholm |
| Rainer Sinn | University of Leipzig |
| Yoann Sohnle | Uppsala University |
| Peter Spacek | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Marcus Spradlin | Brown University |
| Sven Stawinski | Universität Bonn |
| Thomas Stone | Technische Universität München |
| Bernd Sturmfels | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Balazs Szendroi | University of Vienna |
| Lorenzo Tancredi | Technical University of Munich |
| Simon Telen | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Felix Tellander | Trinity College, Dublin |
| Ayush Kumar Tewari | Radon Institute, RICAM |
| Hannah Tillmann-Morris | King's College London |
| Jaroslav Trnka | University of California, Davis |
| Pierre Vanhove | IPhT Saclay |
| Cristian Vergu | The Pennsylvania State University |
| Anastasia Volovich | Brown University |
| Stefan Weinzierl | Johannes-Gutenberg Universität Mainz |
| Nicolas Alexander Weiss | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Brandon Williams | Heidelberg University |
| Qinglin Yang | Max Planck Institute for Physics |
| Claudia He Yun | The Arctic University of Norway |
| Francesca Zaffalon | Max Planck Institute for Mathematics in the Sciences, Leipzig |
| Federico Zerbini | UNED |
| Shun-Qing Zhang | Max Planck Institute for Physics |
| Yang Zhang | University of Science and Technology of China |
| Yao-Qi Zhang | University of Hertfordshire |
Lorenzo Tancredi (TU Munich): Feynman Integrals I: Feynman integrals and integration by parts identities
Feb. 16, 2026 11:15 — 12:30
Feb. 16, 2026 11:15 — 12:30
Lorenzo Tancredi (TU Munich): Feynman Integrals II: Parametric representations (Schwinger, Feynman and Baikov)
Feb. 17, 2026 11:15 — 12:30
Feb. 17, 2026 11:15 — 12:30
Lorenzo Tancredi (TU Munich): Feynman Integrals III: Differential equations and canonical bases
Feb. 18, 2026 11:15 — 12:30
Feb. 18, 2026 11:15 — 12:30
Lorenzo Tancredi (TU Munich): Feynman Integrals IV: Integrand analysis for polylogs and beyond
Feb. 19, 2026 11:15 — 12:30
Feb. 19, 2026 11:15 — 12:30
Zachary Greenberg (MPI MIS, Leipzig): Classifying bounded ratios on cluster algebras with U-variables
Feb. 23, 2026 10:30 — 11:30
Feb. 23, 2026 10:30 — 11:30
Marvin Anas Hahn (Trinity College, Dublin): Enumerative geometry and integrability
Feb. 26, 2026 10:30 — 11:30
Feb. 26, 2026 10:30 — 11:30
Didina Serban (IPhT Saclay): Correlation functions in integrable supersymmetric four-dimensional gauge theories
Feb. 27, 2026 10:30 — 11:30
Feb. 27, 2026 10:30 — 11:30
Samuel Grushevsky (Stony Brook U, New York): Theta Functions and Moduli Spaces, I
March 2, 2026 11:15 — 12:30
March 2, 2026 11:15 — 12:30
Samuel Grushevsky (Stony Brook U, New York): Theta Functions and Moduli Spaces, II
March 3, 2026 11:15 — 12:30
March 3, 2026 11:15 — 12:30
Francis Brown (U of Oxford): Introduction to Motivic and Mellin periods, I
March 4, 2026 11:15 — 12:30
March 4, 2026 11:15 — 12:30
Francis Brown (U of Oxford): Introduction to Motivic and Mellin periods, II
March 5, 2026 09:30 — 10:45
March 5, 2026 09:30 — 10:45
Samuel Grushevsky (Stony Brook U, New York): Theta Functions and Moduli Spaces, III
March 5, 2026 11:15 — 12:30
March 5, 2026 11:15 — 12:30
Veronica Calvo Cortes (MPI MIS, Leipzig): Positive charts of toric varieties
March 9, 2026 10:45 — 11:45
March 9, 2026 10:45 — 11:45
Clément Dupont (Université de Montpellier): Positive geometries and canonical forms via mixed Hodge theory
March 9, 2026 14:15 — 15:15
March 9, 2026 14:15 — 15:15
Jacob Bourjaily (Penn State U): Improving Tools for Perturbation Theory
March 10, 2026 09:30 — 10:30
March 10, 2026 09:30 — 10:30
Paul Heslop (Durham U): The (loop) amplituhedron, squared amplituhedron and correlahedron.
March 10, 2026 10:45 — 11:45
March 10, 2026 10:45 — 11:45
Chaim Even-Zohar (Technion Haifa): Tilings of the Amplituhedron beyond m=4
March 10, 2026 14:15 — 15:15
March 10, 2026 14:15 — 15:15
Jaroslav Trnka (UC Davis): Negative Geometry Expansion of Scattering Amplitudes
March 10, 2026 15:45 — 16:45
March 10, 2026 15:45 — 16:45
Michael Borinsky (Perimeter Institute, Waterloo): Tropical(ized) quantum field theory
March 11, 2026 09:15 — 10:15
March 11, 2026 09:15 — 10:15
Ömer Gürdoğan (U Southampton): Cluster algebraic structures in Feynman integrals
March 12, 2026 09:30 — 10:30
March 12, 2026 09:30 — 10:30
James Drummond (U Southampton): Correlators of multiple light-like Wilson loops
March 12, 2026 10:45 — 11:45
March 12, 2026 10:45 — 11:45
Marcus Spradlin (Brown U, Providence): Cluster Algebras and (Mostly Tree) Amplitudes
March 16, 2026 10:30 — 11:30
March 16, 2026 10:30 — 11:30
Carlos Rodriguez (MPI MIS, Leipzig): Hypergeometric Integrals on a Punctured Riemann Surface
March 17, 2026 10:30 — 11:30
March 17, 2026 10:30 — 11:30
Georgios Papathanasiou (National and Kapodistrian U of Athens): Novel cluster-algebraic letters for six- and five-point QCD processes
March 18, 2026 10:30 — 11:30
March 18, 2026 10:30 — 11:30
Qinglin Yang (MPP, Munich): A First Look at Bootstrapping QCD Amplitudes
March 19, 2026 10:30 — 11:30
March 19, 2026 10:30 — 11:30
Christoph Nega (AEI Potsdam): Generalized third kind forms and their period integrals in Feynman integrals
March 23, 2026 10:45 — 11:45
March 23, 2026 10:45 — 11:45
Felix Tellander (Trinity College, Dublin): Rank-jumping, resonance, and restrictions of Feynman integrals
March 23, 2026 15:45 — 16:45
March 23, 2026 15:45 — 16:45
Johannes Broedel (ETH Zurich): Single-valued polylogarithms for all genera
March 24, 2026 09:30 — 10:30
March 24, 2026 09:30 — 10:30
Brandon Williams (U Heidelberg): Two families of K3 surfaces attached to root lattices
March 24, 2026 14:15 — 15:15
March 24, 2026 14:15 — 15:15
David Broadhurst (Open University): Resurgent Lambert series in quantum field theory and string theory (plus hyper-asymptotics from the cosmohedron)
March 25, 2026 10:45 — 11:45
March 25, 2026 10:45 — 11:45
Eric Pichon-Pharabod (MPI MIS, Leipzig): Numerical computations of periods
March 25, 2026 11:45 — 12:45
March 25, 2026 11:45 — 12:45
Pierre Vanhove (IPhT Saclay): Reflexive Polytopes and the Convergence of Feynman Integrals
March 26, 2026 09:15 — 10:15
March 26, 2026 09:15 — 10:15
Oliver Schnetz (U Hamburg): New developments in the theory of graphical functions
March 26, 2026 10:45 — 11:45
March 26, 2026 10:45 — 11:45
Anastasia Volovich (Brown U, Providence): Mellinology for Energy Correlators
March 26, 2026 11:45 — 12:45
March 26, 2026 11:45 — 12:45
Annika Burmester (Bielefeld U): Hopf algebra structures for multiple (q-)zeta values
March 26, 2026 14:15 — 15:15
March 26, 2026 14:15 — 15:15
Andrzej Pokraka (U of Amsterdam): A diagramatic coaction for FRW power-law cosmological correlators
March 27, 2026 10:45 — 11:45
March 27, 2026 10:45 — 11:45
At a glance
- Type:
- Thematic Programme
- When:
- Feb. 16, 2026 — March 27, 2026
- Where:
- ESI Boltzmann Lecture Hall
- Organizer(s):
-
Daniele Agostini (U Tübingen)
Lara Bossinger (UNAM, Oaxaca)
Ruth Britto (Trinity College, Dublin)
Johannes Henn (MPP, Munich)
Jianrong Li (U of Vienna)
Anna-Laura Sattelberger (MPI MIS, Leipzig)
Oliver Schlotterer (Uppsala U)