Welcome to the ESI

The Erwin Schrödinger International Institute for Mathematics and Physics (ESI) is a programme-oriented research institute for mathematics and physics at the University of Vienna. Since its opening in 1993 it has been the mission of the ESI to advance research in mathematics and physics through fruitful interaction between scientists from these disciplines. [more]

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News

New directorate of the ESI appointed

Published on March 9, 2026

Senior Research Fellow Lecture Course by Prof. Joachim Escher starts on March 3, 2026

Published on Feb. 27, 2026

Thematic Programmes at the ESI in 2027

Published on Feb. 26, 2026

Workshops at the ESI in 2026

Published on Feb. 12, 2026

New Members of the ESI Board 2026

Published on Jan. 26, 2026

[All news entries]

If you are interested in applying for an ESI activity, please check out the links below:

Current and Upcoming Activities

Amplitudes and Algebraic Geometry Feb. 16, 2026 — March 27, 2026 Thematic Programme

Joachim Escher (Leibniz U of Hannover): Fluid Mechanics, covering Rotational Water Waves and Rayleigh-Taylor Instabilities for Potential Flows March 1, 2026 — June 30, 2026 SRF Course

Benedict Leimkuhler (U of Edinburgh): Langevin Sampling Algorithms April 13, 2026 — May 31, 2026 SRF Course

Random Matrices and Operators April 13, 2026 — April 17, 2026 Workshop

Differential Complexes: Theory, Discretization, and Applications April 20, 2026 — June 5, 2026 Thematic Programme

ESI Fellows Activities

Lea Mele (UMONS): Carrollian higher-spin holography March 1, 2026 — April 30, 2026 Junior Research Fellow

Research in Teams: Aperiodic Order and Complexity in Substitution Base Systems March 9, 2026 — May 10, 2026 Research in Teams

Research in Teams: Gabor frames in Higher Dimensions April 6, 2026 — May 5, 2026 Research in Teams

Beatrice Balzarotti (U of Milan): Nonlocal-to-local convergence results for Cahn-Hilliard equations May 1, 2026 — June 30, 2026 Junior Research Fellow

Priyadarshini Pandit (TIFR): Boundary Carrollian Symmetries and Null Open Strings May 1, 2026 — June 30, 2026 Junior Research Fellow

[view all activities]

Upcoming Talks

Mar 10. 2026

Improving Tools for Perturbation Theory Jacob Bourjaily (Penn State U) Mar 10. 2026, 09:30 - 10:30 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

The (loop) amplituhedron, squared amplituhedron and correlahedron. Paul Heslop (Durham U) Mar 10. 2026, 10:45 - 11:45 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

Landau Analysis on the Grassmannian Matteo Parisi (OIST, Okinawa) Mar 10. 2026, 11:45 - 12:45 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

Tilings of the Amplituhedron beyond m=4 Chaim Even-Zohar (Technion Haifa) Mar 10. 2026, 14:15 - 15:15 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

Negative Geometry Expansion of Scattering Amplitudes Jaroslav Trnka (UC Davis) Mar 10. 2026, 15:45 - 16:45 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

Mar 11. 2026

Tropical(ized) quantum field theory Michael Borinsky (Perimeter Institute, Waterloo) Mar 11. 2026, 09:15 - 10:15 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

Normal Fans of Voronoi Cells and Theta Functions Yelena Mandelshtam (U of Michigan, Ann Arbor) Mar 11. 2026, 10:45 - 11:45 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

Graphical Scattering Equations Viktoriia Borovik (MPI MIS, Leipzig) Mar 11. 2026, 11:45 - 12:45 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

Is the amplituhedron a positive geometry? Rainer Sinn (U Leipzig) Mar 11. 2026, 16:00 - 17:00 Part of Amplitudes and Algebraic Geometry (Thematic Programme).

Mar 12. 2026

Cluster algebraic structures in Feynman integrals Ömer Gürdoğan (U Southampton) Mar 12. 2026, 09:30 - 10:30 Part of Amplitudes and Algebraic Geometry (Thematic Programme).