Activities

The Institute's scientific activities are centered around four to six main thematic programmes per year complemented by several workshops and individual lectures organized on short notice. Participation in thematic programmes and workshops is by invitation only.

To support the scientific education of graduate students and young researchers, the ESI regularly offers lecture courses at advanced graduate level held by so-called Senior Research Fellows. In addition, there are summer and winter schools in research areas of topical interest.

In 2012, the ESI has moreover initiated the Research in Teams programme offering individual visiting positions for teams of two to four researchers on application basis.

Since June 2016 the Junior Research Fellowship Programme supports external or local graduate students and recent postdocs.

For more information on the individual programmes and the application procedure, please select the activity you are interested in in the above menu.

On the right hand side you can find a list of all current and upcoming activities. To see the past activities, please use the link at the bottom.

Current and Upcoming

Fufa Beyene (Kotebe U of Education): The Cyclic Sieving Phenomenon (CSP) - Postponed March 1, 2025 — April 30, 2025 Junior Research Fellow
Saikat Mondal (IIT Kanpur): Carroll and large-N March 3, 2025 — May 2, 2025 Junior Research Fellow
Uniform Distribution of Sequences April 22, 2025 — April 25, 2025 Workshop
Quantum Harmonic Analysis May 5, 2025 — May 9, 2025 Workshop
Entanglement in Many-body Quantum Matter: Dynamics, Dissipation, Equilibration May 12, 2025 — June 13, 2025 Thematic Programme
Individual Visiting Scientists 2025 May 15, 2025 — June 30, 2025 Individual Scientists
Research in Teams: On Parabolic Induction for General Linear Groups May 15, 2025 — May 25, 2025 Research in Teams
Research in Teams: Projective Geometry, Combinatorics and Representation Theory from Polytopes May 17, 2025 — June 25, 2025 Research in Teams
Research in Teams: Towards q-characters for quantum affine symmetric pairs June 8, 2025 — June 21, 2025 Research in Teams
Extremal Statistics in Biology June 10, 2025 — June 13, 2025 Workshop
Research in Teams: Exploring the infrared triangle beyond Lorenz Symmetry June 15, 2025 — July 15, 2025 Research in Teams
Reverse Mathematics June 23, 2025 — Aug. 29, 2025 Thematic Programme
Research in Teams: Waves interacting with the Antarctic Circumpolar Current July 5, 2025 — Sept. 26, 2025 Research in Teams
ISAPP2025: Gravitational Waves: From Theory to Detection July 7, 2025 — July 18, 2025 Graduate School
Eisenstein Series, Spaces of Automorphic Forms, and Applications Sept. 1, 2025 — Sept. 5, 2025 Workshop
Charged Soft Matter: Bridging Theory and Experiment Sept. 8, 2025 — Sept. 12, 2025 Workshop
Putting the Cosmic Large-scale Structure on the Map: Theory Meets Numerics Sept. 22, 2025 — Sept. 26, 2025 Workshop
Free Boundary Problems Sept. 29, 2025 — Dec. 19, 2025 Thematic Programme
Yoshihiro Tonegawa (Inst. of Science Tokyo): Introduction to Brakke's Mean Curvature Flow Oct. 26, 2025 — Nov. 15, 2025 SRF Course
Quantum Many-body Systems and Bose-Einstein Condensation: A Mathematical Physics Perspective Nov. 24, 2025 — Nov. 28, 2025 Workshop
Hyperboloidal Foliations and their Application Jan. 12, 2026 — Jan. 16, 2026 Workshop
Modelling Diffusive Systems: Theory & Biological Applications (MoDiS) Jan. 26, 2026 — Jan. 30, 2026 Workshop
Probabilistic Mass Transport - from Schrödinger to Stochastic Analysis Feb. 9, 2026 — Feb. 13, 2026 Workshop
Amplitudes and Algebraic Geometry Feb. 16, 2026 — March 27, 2026 Thematic Programme
Differential Complexes: Theory, Discretization, and Applications April 20, 2026 — June 5, 2026 Thematic Programme
Joachim Escher (Leibniz U of Hannover): Fluid Mechanics, covering Rotational Water Waves and Rayleigh-Taylor Instabilities for Potential Flows May 1, 2026 — June 30, 2026 SRF Course
The Unreasonable Effectiveness of Toric Geometry: Bridging Mathematics, Computation, and String Theory June 15, 2026 — July 17, 2026 Thematic Programme
New Paradigms for Harnessing Quantum Field Theory at Colliders July 27, 2026 — Aug. 28, 2026 Thematic Programme
Statistical Mechanics and Combinatorics of Discrete Planar Structures Sept. 14, 2026 — Oct. 30, 2026 Thematic Programme

Apr 23. 2025

Metallic mean Wang tiles and their Rauzy fractals Sebastien Labbé (U Bordeaux) Apr 23. 2025, 09:00 - 09:30 Part of Uniform Distribution of Sequences (Workshop).
Regularity of positional numeration systems without a dominant root Emilie Charlier (U of Liège) Apr 23. 2025, 09:30 - 10:00 Part of Uniform Distribution of Sequences (Workshop).
Interval Translation Maps: Renormalization and Weak Mixing Silvia Radinger (U of Vienna) Apr 23. 2025, 10:00 - 10:30 Part of Uniform Distribution of Sequences (Workshop).
On dynamics of some continued fraction maps Hitoshi Nakada (Keio U) Apr 23. 2025, 11:00 - 11:30 Part of Uniform Distribution of Sequences (Workshop).
Additive word complexity and Walnut Pierre Popoli (U of Liège) Apr 23. 2025, 11:30 - 12:00 Part of Uniform Distribution of Sequences (Workshop).
Descendants of the mother of all continued fractions Slade Sanderson (Utrecht U) Apr 23. 2025, 14:00 - 14:45 Part of Uniform Distribution of Sequences (Workshop).
On the increasing rate of weighted products of multiple partial quotients in continued fractions Ayreena Bakhtawar (IMPAN, Warsaw) Apr 23. 2025, 15:15 - 15:45 Part of Uniform Distribution of Sequences (Workshop).
Tameness, nullness, and amorphic complexity of automatic systems. Elzbieta (Ela) Krawczyk (U of Vienna) Apr 23. 2025, 15:45 - 16:15 Part of Uniform Distribution of Sequences (Workshop).
Dynamics of dendric subshifts Bastian Espinoza (U of Liège) Apr 23. 2025, 16:15 - 16:45 Part of Uniform Distribution of Sequences (Workshop).

Apr 24. 2025

Dirichlet improvability in $L_p$-norms Nikolay Moshchevitin (TU Vienna) Apr 24. 2025, 09:00 - 09:30 Part of Uniform Distribution of Sequences (Workshop).
Automatic proofs in combinatorial game theory Michel Rigo (U Liege) Apr 24. 2025, 09:30 - 10:00 Part of Uniform Distribution of Sequences (Workshop).
Skew-product systems over infinite interval exchange transformations Olga Lukina (Leiden U) Apr 24. 2025, 10:00 - 10:30 Part of Uniform Distribution of Sequences (Workshop).
Rauzy dimension and finite state dimension Olivier Carton (Paris Cité U) Apr 24. 2025, 11:00 - 11:30 Part of Uniform Distribution of Sequences (Workshop).
First expansive returns and cross sections Tom Schmidt (Oregon State U, Corvallis) Apr 24. 2025, 11:30 - 12:00 Part of Uniform Distribution of Sequences (Workshop).
Equidistribution modulo finite groups in shifts Valérie Berthé (Paris Cité U) Apr 24. 2025, 14:00 - 14:45 Part of Uniform Distribution of Sequences (Workshop).
Thue--Morse along the sequence of cubes Lukas Spiegelhofer (Montanuniversität Leoben) Apr 24. 2025, 15:15 - 15:45 Part of Uniform Distribution of Sequences (Workshop).
Leading Digits, Factor Complexity, and Flows on Homogeneous Spaces: A Dynamical Approach Golafshan Mehdi (U of Liège) Apr 24. 2025, 15:45 - 16:15 Part of Uniform Distribution of Sequences (Workshop).

Apr 25. 2025

Digit expansions in rational and algebraic basis Lucia Rossi (TU Wien) Apr 25. 2025, 09:30 - 10:00 Part of Uniform Distribution of Sequences (Workshop).
A Special Case of the Binary S-adic Pisot Conjecture Yasushi Nagai (Shinshu U) Apr 25. 2025, 10:00 - 10:30 Part of Uniform Distribution of Sequences (Workshop).
Computing or Reasoning? New Examples Link Innovative Systems! (A 67th birthday talk) Wieb Bosma (Radboud U) Apr 25. 2025, 11:00 - 11:30 Part of Uniform Distribution of Sequences (Workshop).
Badly approximable numbers and Delone sets Shigeki Akiyama (U of Tsukuba) Apr 25. 2025, 11:30 - 12:00 Part of Uniform Distribution of Sequences (Workshop).
B-free sets and the existence of natural density Joanna Kułaga-Przymus (NCU, Torun) Apr 25. 2025, 14:00 - 14:45 Part of Uniform Distribution of Sequences (Workshop).
Symmetries, spectra and eigenfunctions of simple B-free lattice systems Michael Baake (Bielefeld U) Apr 25. 2025, 15:15 - 15:45 Part of Uniform Distribution of Sequences (Workshop).

May 05. 2025

Discrete Time-Frequency Analysis via MATLAB Hans G. Feichtinger (U of Vienna) May 05. 2025, 11:15 - 12:00 Part of Quantum Harmonic Analysis (Workshop).
Spectral deviation of Toeplitz operators on vector-valued reproducing kernel Hilbert spaces Michael Speckbacher (Acoustics Research Institute, Vienna) May 05. 2025, 14:00 - 14:30 Part of Quantum Harmonic Analysis (Workshop).
A large sieve principle for the operator STFT with applications to Cohen's class Erling Svela (NTNU, Trondheim) May 05. 2025, 14:30 - 15:00 Part of Quantum Harmonic Analysis (Workshop).
Classical phase space representations of density operators with classical and quantum Gabor transforms Luis Daniel Abreu (U of Vienna) May 05. 2025, 15:15 - 16:15 Part of Quantum Harmonic Analysis (Workshop).
New classes of hermitian algebras Are Austad (U Oslo) May 05. 2025, 16:30 - 17:00 Part of Quantum Harmonic Analysis (Workshop).

May 06. 2025

WIGNER ANALYSIS OF OPERATORS. CONTROLLING GHOST FREQUENCIES Elena Cordero (U Torino) May 06. 2025, 09:30 - 10:30 Part of Quantum Harmonic Analysis (Workshop).
Understanding of linear operators through Wigner analysis Edoardo Pucci (U Torino) May 06. 2025, 11:00 - 11:30 Part of Quantum Harmonic Analysis (Workshop).
Fourier-Wigner multipliers in Quantum Harmonic Analysis Helge Jørgen Samuelsen (NTNU, Trondheim) May 06. 2025, 11:30 - 12:00 Part of Quantum Harmonic Analysis (Workshop).
Heisenberg-smooth operators and QHA Robert Fulsche (Leibniz U Hannover) May 06. 2025, 14:00 - 15:00 Part of Quantum Harmonic Analysis (Workshop).
Towards a Theory of Quantum Harmonic Analysis on Riemannian Manifolds Michael Gjertsen (NTNU, Trondheim) May 06. 2025, 15:15 - 15:45 Part of Quantum Harmonic Analysis (Workshop).
Orlicz convolutions in QHA with applications to Orlicz Schatten properties for Toeplitz operators Joachim Toft (Linnaeus U) May 06. 2025, 15:45 - 16:15 Part of Quantum Harmonic Analysis (Workshop).

May 07. 2025

Provably efficient machine learning for quantum many-body problems Richard Küng (JKU, Linz) May 07. 2025, 09:30 - 10:30 Part of Quantum Harmonic Analysis (Workshop).
On the power of adaption and randomization Mario Ullrich (JKU, Linz) May 07. 2025, 11:00 - 11:30 Part of Quantum Harmonic Analysis (Workshop).
Approximation with Neural Networks in Fourier Lebesgue Spaces Ahmed Abdeljawad (RICAM, Linz) May 07. 2025, 11:30 - 12:00 Part of Quantum Harmonic Analysis (Workshop).
On Euler or on Cayley David Gross (U Cologne) May 07. 2025, 14:00 - 15:00 Part of Quantum Harmonic Analysis (Workshop).
Gabor regularisation of Minkowski space-time Jean Pierre Gazeau (Paris Cité U) May 07. 2025, 15:15 - 15:45 Part of Quantum Harmonic Analysis (Workshop).
The Grothendieck inequality in Quantum Mechanics and Harmonic Analysis Apostolos Vourdas (U of Bradford) May 07. 2025, 15:45 - 16:15 Part of Quantum Harmonic Analysis (Workshop).
Special functions, Groups, Harmonic Analysis and Rigged Hilbert Spaces Mariano del Olmo (UVS) May 07. 2025, 16:30 - 17:00 Part of Quantum Harmonic Analysis (Workshop).

May 08. 2025

Properties of hyperbolic convolution on the unit disc and applications Margit Pap (U Pécs) May 08. 2025, 09:30 - 10:00 Part of Quantum Harmonic Analysis (Workshop).
Frames by orbits of Bounded Operators Carlos Cabrelli (U of Buenos Aires) May 08. 2025, 10:00 - 10:30 Part of Quantum Harmonic Analysis (Workshop).
Weaving Frames and Riesz bases Ursula Molter (U of Buenos Aires) May 08. 2025, 11:00 - 12:00 Part of Quantum Harmonic Analysis (Workshop).
An operator heat semigroup and the Berger-Coburn theorem Vishwa Dewage (Clemson U) May 08. 2025, 14:00 - 14:30 Part of Quantum Harmonic Analysis (Workshop).
Toeplitz and time-frequency localization operators on the flat torus Johannes Testorf (NTNU, Trondheim) May 08. 2025, 14:30 - 15:00 Part of Quantum Harmonic Analysis (Workshop).
Compact operators on locally compact abelian groups Raffael Hagger (Christian-Albrechts-U, Kiel) May 08. 2025, 15:15 - 15:45 Part of Quantum Harmonic Analysis (Workshop).
Approximation properties and characterization of operator coorbit spaces Lukas Köhldorfer (Acoustics Research Institute, Vienna) May 08. 2025, 15:45 - 16:15 Part of Quantum Harmonic Analysis (Workshop).
A Duflo-Moore theorem for ergodic group actions on semifinite von Neumann algebras Hannes Wendt (U Oslo) May 08. 2025, 16:30 - 17:00 Part of Quantum Harmonic Analysis (Workshop).

May 09. 2025

Uncertainty Principles for Metaplectic Time-Frequency Representations Irina Shafkulovska (U of Vienna) May 09. 2025, 09:30 - 10:30 Part of Quantum Harmonic Analysis (Workshop).
Recent developments on Hardy's uncertainty principle Gianluca Giacchi (U Svizzera Italiana) May 09. 2025, 10:45 - 11:15 Part of Quantum Harmonic Analysis (Workshop).
Hermite expansions for spaces of functions with nearly optimal time-frequency decay Lenny Neyt (U of Vienna) May 09. 2025, 11:15 - 11:45 Part of Quantum Harmonic Analysis (Workshop).
Polar Duality and the Donoho--Stark Uncertainty Principle Maurice de Gosson (Acoustics Research Institute, Vienna) May 09. 2025, 12:00 - 12:30 Part of Quantum Harmonic Analysis (Workshop).

[past activities]