YOUNGST@RS - Single-Valued Periods in Scattering Amplitudes
from
Wednesday, 14 January 2026 (09:00)
to
Friday, 16 January 2026 (17:30)
Monday, 12 January 2026
Tuesday, 13 January 2026
Wednesday, 14 January 2026
09:00
Welcome: Welcome
Welcome
09:00 - 09:15
09:15
Axel Kleinschmidt: Single-valued periods in string theory
Single-valued periods in string theory
09:15 - 10:15
10:15
Aurélie Sangaré: Single-Valued Periods in String Theory: From Flat Space to AdS
Single-Valued Periods in String Theory: From Flat Space to AdS
10:15 - 11:00
11:00
Yi-Xiao Tao: Elliptic modular graph forms, equivariant iterated integrals and single-valued elliptic polylogarithms
Elliptic modular graph forms, equivariant iterated integrals and single-valued elliptic polylogarithms
11:00 - 11:45
12:00
Break
Break
12:00 - 14:00
14:00
Marco Baccianti: Rademacher evaluations of modular integrals
Rademacher evaluations of modular integrals
14:00 - 14:45
14:45
Emiel Claassen: Single-valued periods in one-loop superstring amplitudes
Single-valued periods in one-loop superstring amplitudes
14:45 - 15:30
Thursday, 15 January 2026
09:30
Carlos Rodriguez: Hypergeometric Integrals on a Punctured Riemann Surface
Hypergeometric Integrals on a Punctured Riemann Surface
09:30 - 10:15
10:15
Stephan Stieberger: Periods in Low- and High-Energy String Expansions
Periods in Low- and High-Energy String Expansions
10:15 - 11:15
11:15
Simone Hu: Cocycles for graph complexes via Feynman integrals
Cocycles for graph complexes via Feynman integrals
11:15 - 12:00
12:00
Break
Break
12:00 - 14:00
14:00
Clement Dupont: Single-valued integration, a cohomological viewpoint
Single-valued integration, a cohomological viewpoint
14:00 - 15:00
15:30
Franca Lippert: Generating non-holomorphic modular forms from the canonical differential equation
Generating non-holomorphic modular forms from the canonical differential equation
15:30 - 16:15
16:15
Ulysee Mounoud: The Motivic Coaction of One-loop Feynman Integrals
The Motivic Coaction of One-loop Feynman Integrals
16:15 - 17:00
Friday, 16 January 2026
09:30
Claude Duhr
09:30 - 10:45
11:00
Gaia Fontana: Parametric annihilators and differential equations for twisted integrals
Parametric annihilators and differential equations for twisted integrals
11:00 - 11:45
12:00
Break
Break
12:00 - 14:00
14:00
Cathrin Semper: Symmetry Invariant Twisted Cohomology
Symmetry Invariant Twisted Cohomology
14:00 - 14:45
14:45
Felix Forner: Calabi-Yau Periods in QED
Calabi-Yau Periods in QED
14:45 - 15:30
15:30
Pouria Mazloumi: Geometry of Feynman Integrals: A (slightly) New perspective
Geometry of Feynman Integrals: A (slightly) New perspective
15:30 - 16:15
16:15
Andrzej Pokraka
16:15 - 17:15