• Lecture Series "Modular Forms in String Compactifications" by Thorsten Schimannek (Wien), February 22 - 26, 2021
  The Lecture Series will be held as an online meeting.
• Lecture Series "New Approaches to Feynman Integrals" by Claude Duhr (CERN), March 15 - 19, 2021
  The Lecture Series will be held as an online meeting.
• Bethe Forum "Inflation" - Preliminary Lectures March 22 - 24, 2021
  Online meeting.
• Postponed! The Bethe Forum "Inflation", planned for March 22-26, 2021, has to be postponed. We will give further information as soon as possible.
  Organizers: M. Peloso (Padua), M. Drees (Bonn), H. P. Nilles (Bonn) and I. Zavala (Swansea)
• Bethe Forum "Modular Flavor Symmetries": Preliminary Lectures May 3-4, 2021
  Online meeting.
• Postponed! The Bethe Forum "Modular Flavor Symmetries", planned for May 3-7, 2021, has to be postponed. We will give further information as soon as possible.
  Organizers: M. Ratz (Irvine), F. Feruglio (Padua), T. Kobayashi (Sapporo) and H. P. Nilles (Bonn).
• Bethe Forum "Machine Learning: Where to Apply in Theoretical Physics" - Preliminary Lecture by Jim Halverson (Northeastern University, Boston), June 8, 2021
  Online meeting.
• Postponed! Bethe Forum "Machine Learning: Where to Apply in Theoretical Physics", tentatively planned for June 7-11, 2021, has to be postponed. We will give further information as soon as possible.
  Organizers: F. Ruehle (CERN), J. Halverson (Boston), H. P. Nilles (Bonn) and P. Vaudrevange (Munich).
• Postponed! - Bethe Forum "Axions", planned for October 12-16, 2020, will take place in 2021. The exact date will be given as soon as possible.
  Organizers: S. Pokorski (Warsaw), H. P. Nilles (Bonn), T. Gherghetta (Minneapolis) and E. Dudas (Palaiseau)

We would like to announce the Lecture Series on "Modular Forms in String Compactifications" by Thorsten Schimannek (Wien). It will be held as a Zoom meeting.

Topics will include:
- Basics of modular forms, Jacobi forms and string compactifications
- Symmetries of string theories on tori
- Modularity from Calabi-Yau compactifications
- Jacobi forms and swampland conjectures

For more information and the registration form please visit the event webpage.

Claude Duhr (CERN) will give a Lecture Series on "New Approaches to Feynman Integrals" on March 15 - 19, 2021, as a Zoom meeting. .

Abstract: Feynman integrals are the backbone of all higher-order calculations in perturbative quantum field theory. They are not only of formal interest, but they are also key to performing precise calculations for experiments. In these lecture we review some recent developments in the understanding of the mathematics underlying Feynman integrals. We focus in particular on tools inspired from modern number theory and the theory of motivic periods, which have been instrumental in some of the most advanced computations for experiments in collider physics.

For more information and the registration form please visit the event webpage.

Three preliminary lectures to the postponed Bethe Forum "Inflation" will take place on March 22 - 24, 2021, as a Zoom-meeting. The speakers are: Anthony Challinor (Cambridge), Arthur Hebecker (Heidelberg) and Lorenzo Sorbo (UMass Amherst).

For more information and the registration form please go to the event webpage.

Two preliminary lectures to the postponed Bethe Forum "Modular Flavor Symmetries" will take place as a Zoom meeting on May 3 - 4, 2021. The speakers are Gui-Jun Ding (Hefei, CUST) and Saúl Ramos-Sánchez (Mexico).

More information and the registration form are available on the event webpage.

Jim Halverson (Northeastern University, Boston) will give a preliminary lecture to the postponed Bethe Forum "Machine Learning: Where to Apply in Theoretical Physics" as a Zoom meeting on June 8, 2021.

The title is: Recent Results at the Intersection of Machine Learning and Theoretical Physics.

More information and the registration form are available on the event webpage.

The Bethe Forum "Inflation" will be rescheduled, subject to the further development of the Covid-19 situation. Further information will be published as soon as possible on the event webpage. Registration is closed until further notice.

The Bethe Forum "Modular Flavor Symmetries" will be rescheduled, subject to the further development of the Covid-19 situation. Further information will be published as soon as possible on the the event webpage. Registration is closed until further notice.

The Bethe Forum "Machine Learning: Where to Apply in Theoretical Physics", tentatively rescheduled to June 7-11, 2021, has to be postponed. Further information will be published as soon as possible on the event webpage. Registration is closed until further notice.

The Bethe Forum "Axions" will be rescheduled in 2021, subject to the further development of the Covid-19 situation. Further information and a prospective date will be published as soon as possible.