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About

Erdős Center was established in 2021 in Budapest, Hungary by the
Rényi Institute with the support of HUN-REN (formerly ELKH) in Budapest.

We aim to organize workshops, summer schools and conferences as well as to host visiting researchers within the framework of thematic semesters.

In addition, informal Focused Workshops addressing timely challenges in mathematics are organized in the Summer. 

The Center is located in Reáltanoda utca, the historic center of Budapest, just accross the Rényi Institute. The centre started operating in the spring semester of 2022.  More info about us...

Board of the Erdős Center

Endre Szemerédi
 

János Kollár

Tobias Ekholm
 

Alexander Schijver

Özlem Imamoḡlu

Miklós Abért
 

Monika Ludwig

Semesters

Simons Semester in Probability and Statistical Physics - 2025 Spring (Jan-June)

01/01/2025 - 06/30/2025
The goal of the semester is to bring together prominent scientists of the field to discuss the frontline of research and to introduce the next generation of researchers to the wide range of ideas and methods of contemporary probability and mathematical statistical physics.
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Simons Semester in Analysis and Geometry on Complex Manifolds - 2025 Fall (Aug-Dec)

08/01/2025 - 12/31/2025
The primary theme of this special research semester is to explore recent advancements in the theory of complex manifolds, with a focus on both Kählerian and non-Kählerian cases.
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Simons Semester in New Directions in Modern Harmonic Analysis and Applications- 2026 Spring (January to June)

01/01/2026 - 06/20/2026
The semester will focus on the intersections between modern harmonic analysis, number theory as well as arithmetic and geometric Ramsey theory, which are still evolving.
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Simons Semester in Algebraic Geometry - 2026 Fall (August to December)

08/01/2026 - 12/30/2026
The thematic semester will center on various aspects of the theory of moduli spaces, that is, parameter spaces in algebraic geometry.
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Simons Semester in Ordered Combinatorics - 2027 Spring (JAN-JUN)

01/01/2027 - 06/30/2027

In several classical areas of combinatorics, the underlying structure itself is equipped with some partial or total order. For example, the subsets of a set are naturally ordered by containment. A typical question in extremal set theory is the following Sperner-type problem: given a set X, what is the maximum number of subsets we can select without including two that are comparable, or without forming some other forbidden substructure in the Boolean lattice of subsets of X?

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Events

06/09/2025 - 06/13/2025
Turán Hall
Focused Workshop on Group actions and equivalence relations
Group actions and equivalence relations lie at the intersections of several active research fields, such as descriptive set theory, measurable and topological dynamics, and Borel combinatorics, among others.
06/30/2025 - 07/04/2025
Erdős Center
Focused Workshop on Khovanov homology and exotic manifolds

Four-dimensional manifolds hold a special place in the field of smooth manifolds. It is the lowest dimension in which we see exotic manifolds, and arguably the least understood of all dimensions: for example the generalised Poincare conjecture is still open only in dimension 4. 

06/30/2025 - 07/02/2025
Main Lecture Hall
Stochastics and Influences Workshop
Topics of the workshop include the large-scale behaviour of stochastic and dynamical systems inspired by the questions of statistical physics.
07/07/2025 - 07/11/2025
Erdős Center
Focused Workshop on Current Trends in Geometric Valuation Theory
This workshop will bring together experts in order to foster collaboration and explore new connections between the algebraic structure of smooth valuations on convex bodies and the theory of valuations on convex functions.
08/04/2025 - 08/08/2025
Rényi Institute, main lecture hall
Summer school I: Invitation to complex geometry
Eleonora di Nezza (Paris, Sorbonne) and Siarhei Finski (Paris, CNRS) will give introductory talks on Kähler geometry, highlighting recent advances, to a group of non-experts, primarily composed of students and postdocs.
06/22/2026 - 06/26/2026
Hungarian Academy of Sciences, 1051 Budapest, Széchenyi István tér 9.
Conference - Geometry and topology in low dimensions: lasting trends and emerging directions
The conference will bring together experts from various fields of low-dimensional topology, including exotic phenomena, contact and symplectic geometry, Heegaard Floer homology, gauge theory, and knots and knotted surfaces. Each day will be introduced by a panoramic talk by a distinguished speaker on the day's special topic, followed by research talks on that topic.

Experience Stories

Account of the winter school on singularities and low-dimensional topology

02/15/2023
Recently, I participated in the Winter school in singularities and low-dimensional topology. This was the opening event of the Erdős Center semester Singularities and low-dimensional topology. The workshop was intended to form a link between low-dimensional topology and singularity theory in the minds of more than a hundred young researchers and PhD-students such as myself.
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Optimal Transport on Quantum Structures Workshop

10/07/2022
In the last two weeks of September we were welcome at the Rényi institute for a school and workshop on optimal transport on quantum structures. After a very nice school introducing some of the main ideas in this field, we got to start on the research talks. Matthijs Vernooij
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Summer School on Quantum Optimal Transport

09/30/2022
During my visit to the Hungary National museum, I learned that during the cold war Budapest was seen as a city where scholars came together, minds were sparked and conventions where challenged. Well, for at least two weeks in September history seemed to have repeated itself. Robert de Keijzer
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Automorphic Forms Conference- An exceptional event post-pandemic

09/20/2022
The Erdős Center organised the Automorphic forms conference from 5 - 9 September, 2022. This 5 day conference included 21 invited talks and 15 contributed talks by leading researchers in the theory of automorphic forms from various universities across the world. Keshav Aggarwal
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Automorphic Forms Summer School from a Student's Perspective

09/07/2022
In the semester preceding the summer school, Gergely Harcos and Péter Maga gave an introductory course about automorphic forms at Eötvös Loránd University. This helped us to gain insight into automorphic forms, and for me, it opened a whole new area of mathematics. Csaba Anderlik
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First-Hand Experience From the Summer Schools: Mathematics of Large Networks & Graphs, Groups, Stochastic Processes

06/17/2022
During the past few weeks, I participated in two summer schools at the Alfréd Rényi Institute of Mathematics, as part of the Erdős center semester on Large Networks and their Limits... Vilas Winstein
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