Centre de Recerca Matemàtica building at dusk
Centre de Recerca Matemàtica · Bellaterra · Est. 1984

Annual Report 2025

Read the full report
Carme Cascante, Director of the CRM, at her desk
Director’s Foreword
Carme Cascante
Director, CRM

“2025 was a productive year for our research — and a year in which we set out where the institution is heading through our new 2026–2030 Strategic Plan.”

Our scientific programme is now organised around four core areas — algebra & geometry, analysis, PDEs & dynamical systems, mathematical modelling and combinatorics — with flagship work at the intersection of AI and mathematics.

In December the centre successfully completed its four-year CERCA evaluation. We launched the CRM–MdM Chair of Excellence to host senior women researchers, and continued our public engagement through the podcast Ments Meravelloses and the blog El Gegant del π.

CRM in numbers

The 2025 figures at a glance
140
Publications
24
PhD theses defended
54
Research activities
1,400+
Participants
66
Countries · 6 continents
10
Research groups
€3.25M
Total revenue · balanced
28
Outreach blog posts
2,000+
Blog views · El Gegant del π
5
Types of activity
Conferences · Workshops · Colloquia
Advanced & BGSMath courses
A global community

From 66 countries, across six continents.

In 2025 the CRM welcomed researchers and students from around the world for programmes, schools and extended research stays — over 1,400 participants in all.

Represented in 2025 Not represented
World map highlighting the 66 countries CRM visitors came from in 2025
02 — Research

Ten groups, one mathematical hub.

CRM researchers are based at the centre and across Barcelona’s universities — the UAB, UPC and UB — with several holding ICREA affiliations, and they converge on the CRM through shared programmes, seminars, visiting scientists and its graduate school. Select a group to see its members, projects and publications.

CRM Matemàtica signage in the centre’s corridor
01

Algebra and Algebraic Geometry

Non-commutative and commutative algebra, moduli spaces, Arakelov geometry and abelian varieties.

15 researchers · 12 publications
02

Geometry and Topology

Differential and symplectic geometry, algebraic topology — including an abstract “fluid computer.”

12 researchers · 8 publications
03

Number Theory

Deep arithmetic phenomena through the lens of the Langlands Program — Galois representations, automorphic forms and abelian varieties.

7 researchers · 8 publications
04

Mathematical and Computational Biology

New theory, models and tools for biologists and clinicians — multiscale models, dynamical systems and machine learning.

7 researchers · 9 publications
05

Computational and Mathematical Neuroscience

Systems-level neuroscience: how large assemblies of interacting neurons give rise to animal and human behaviour.

8 researchers · 11 publications
06

Mathematics for the Environment and Society

Mathematical and statistical techniques for natural hazards, climate and the capture of environmental contaminants.

5 researchers · 9 publications
07

Analysis

Classical analysis at the interaction of complex and harmonic analysis with geometric measure theory, PDEs and probability.

12 researchers · 22 publications
08

Partial Differential Equations

Regularity of nonlinear PDE, free boundary problems, minimal surfaces and nonlocal equations from probability and physics.

5 researchers · 11 publications
09

Dynamical Systems

Invariant objects and their connections, with applications in celestial mechanics, astrodynamics, neuroscience and chemistry.

18 researchers · 34 publications
10

Combinatorics and Mathematics of Computer Science

Discrete mathematics, theoretical computer science and mathematical logic — from graph theory to computational complexity.

11 researchers · 16 publications
03 — Highlighted publications

Thirteen from 140 papers.

The results the centre highlighted from its 2025 output, spanning the research groups. Each links to the paper.

Number Theory

On Darmon’s program for the generalized Fermat equation, I

Billerey, Chen, Dieulefait & Freitas
Crelle’s Journal · 2025 · DOI ↗
Analysis

Carleson’s ε²-conjecture in higher dimensions

Fleschler, Tolsa & Villa
Inventiones Mathematicae · 2025 · DOI ↗
Computational and Mathematical Neuroscience

Representational drift as the consequence of ongoing memory storage

Devalle, Zou, Cecchini & Roxin
Scientific Reports · 2025 · DOI ↗
Geometry and Topology

Asymmetry of MHD equilibria for generic adapted metrics

Cardona, Duignan & Perrella
Arch. Rational Mech. Anal. · 2025 · DOI ↗
Partial Differential Equations

Stable solutions to the fractional Allen–Cahn equation

Cabré, Cinti & Serra
American J. of Mathematics · 2025 · DOI ↗
Mathematical and Computational Biology

Generating heterogeneous data on gene trees

García, Moscardó & Casanellas
J. of Computational Biology · 2025 · DOI ↗
Dynamical Systems

Ergodic properties of infinite extensions of interval exchange maps

Berk & Trujillo
J. de l’École Polytechnique · 2025 · DOI ↗
Partial Differential Equations

Improvement of flatness for nonlocal free boundary problems

Ros-Oton & Weidner
J. Eur. Math. Society · 2025 · DOI ↗
Analysis

Solvability of the Poisson–Dirichlet problem in Carleson spaces

Mourgoglou, Poggi & Tolsa
J. Eur. Math. Society · 2025 · DOI ↗
Mathematical and Computational Biology

Multiscale modelling of cell–ECM interactions

Arellano-Tinto, Stepanova, Byrne, Maini & Alarcón
PLOS Computational Biology · 2025 · DOI ↗
Combinatorics and Mathematics of Computer Science

Hochschild polytopes

Pilaud & Poliakova
Mathematische Annalen · 2025 · DOI ↗
Combinatorics and Mathematics of Computer Science

Consistency of Relations over Monoids

Atserias & Kolaitis
Journal of the ACM · 2025 · DOI ↗
Mathematics for the Environment and Society

A homogenized model for dispersive transport and sorption

Auton, Dalwadi & Griffiths
SIAM J. Applied Math · 2025 · DOI ↗
04 — Knowledge Transfer

Turning theorems into tools.

The Knowledge Transfer Unit connects CRM research with companies, institutions and the public sector — building tailored solutions in modelling, simulation, optimisation and data science, and running two industrial study weeks each year.

Food-tech

BISTECH

A mathematical model — and a friendly interface — for cooking a wide range of foods with a new device.

ALBA Synchrotron

DYSEDAS

A lossless data-compression method powered by dynamical systems, with the ALBA Synchrotron as end user.

Cybersecurity · i2CAT

LICSAI

Quantifying the uncertainty of an AI algorithm that estimates the risk of a phishing attack.

Health · Antivirals

TIPSAVIR

Simulating viral infection at the RNA level to search for therapeutic interfering genomes as antivirals.

Mobility · Horizon Europe

eBRT2030

A Horizon Europe project with 49 partners developing a new generation of electric Bus Rapid Transit systems.

Unit
David Romero (Head) · Lucía Escudero · Marc Homs-Dones · Manel Mas · Daniel Cuadrillero
Partners
ICFO · ICM · ALBA Synchrotron
05 — Outreach & Communication

Mathematics, out loud.

Two platforms and a full calendar of science festivals carried the CRM’s public engagement in 2025 — from a storytelling blog and a podcast to hands-on demonstrations for thousands of visitors.

28
Blog posts · El Gegant del π
2,049
Blog views
2
Podcast episodes · Ments Meravelloses
4,846
Podcast views
20+
Event chronicles
13
Figures Visibles displays
12
Videos produced
20,164
Video views
Programmes & appearances
El Gegant del π blog Ments Meravelloses podcast Diari de doctorat Mathematical Fiction Saga Figures Visibles exhibition Festa de la Ciència · Neural Code Nit de la Recerca Setmana de la Ciència Women in Mathematics day
Centre de Recerca Matemàtica mugs
06 — The year

A timeline of 2025.

January

4th Nonlinear Processes in Oceanic & Atmospheric Flows

An international forum bringing together mathematicians, physicists and oceanographers on the nonlinear dynamics of atmospheric and oceanic phenomena (22–25 January).

January

BCN Face(t)s in Symplectic Geometry

The year opens with a symplectic-geometry meeting in Barcelona (28–31 January), organised by Eva Miranda.

January

Barcelona Discrete Mathematics Meeting

Seven Barcelona discrete-maths groups meet for a day of talks (30 January) to spark new collaborations — the first BDMM.

February

Workshop on Discrete Dynamical Systems

A workshop revisiting difference equations, topological and combinatorial dynamics (3–6 February).

March

New Frontiers in Homogenization & Fractional Calculus

A meeting on homogenization and fractional calculus (24–25 March), with Xavier Cabré on the programme committee.

April

Chair of Excellence launches

The CRM–María de Maeztu Chair of Excellence opens with an inaugural colloquium by Chenchang Zhu (Göttingen) on higher structures in symplectic geometry (9 April).

Researchers at the Modern Trends in Fourier Analysis poster session
May – Jun

Modern Trends in Fourier Analysis

A seven-week Intensive Research Programme in harmonic analysis and geometric measure theory (5 May–25 June), with an advanced course and a conference.

May

BARCCSYN 2025

The 13th Barcelona Computational, Cognitive & Systems Neuroscience meeting (22–23 May).

May

PDE in Barcelona

The analysis and PDE community gathers at the Universitat de Barcelona, organised by Xavier Ros-Oton and Tomás Sanz-Perela.

June

Topics in Complex Dynamics 2025

A week connecting complex dynamics to geometry and analysis at the Universitat de Barcelona (2–6 June).

June

Jornada de Ciència Oberta

An open-science day on transparency and accessibility across the whole research process (11 June).

June

Hypatia 2025 Summer School

A graduate summer school in number theory with a gender perspective highlighting women in mathematics (16–19 June).

A mathematician working at a blackboard at the CRM
June

ICMNS 2025

The tenth International Conference on Mathematical Neuroscience brings the field to Barcelona (17–20 June).

June

Harmonic Analysis & PDEs Summer School

A summer school on singular integrals, fluid mechanics and interaction-energy minimisers (25–27 June).

A researcher drawing a polytope on a chalkboard at the CRM
Jun – Jul

JISD 2025

The 21st School on Interactions between Dynamical Systems and Partial Differential Equations gathers young researchers at Bellaterra (30 June–4 July).

Jun – Jul

BIMR 2025

The Barcelona Introduction to Mathematical Research summer school gives undergraduates a first taste of research (30 June–25 July).

A student walking towards the CRM auditorium beneath mathematical equations
July

XI Iberian Modeling Week

The CRM hosts the eleventh Iberian Modeling Week (7–11 July) with math-in and Pt-maths-in — nearly 30 students tackle real-world industrial problems.

July

European Study Group with Industry

ESGI 2025 (14–18 July) pairs mathematicians with companies to solve real industrial problems, back-to-back with the Modeling Week.

July

5th BCN Summer School of Stochastic Analysis & Mathematical Finance

Advanced courses reviving the CRM’s stochastic-analysis summer-school series (21–25 July).

July

Strategic Plan 2026–2030

The Scientific Advisory Board approves the new strategic plan, setting the centre’s direction across research, training and community.

A BAMB! summer-school session at the CRM
Summer

BAMB! 2025

The Barcelona Advanced Modeling of Behaviour summer school trains the next generation in computational models of behaviour.

September

Bilbao–Barcelona Analysis & PDEs

A joint analysis and PDEs meeting co-organised with BCAM in Bilbao (3–5 September).

September

New ATRAE researcher

A new ATRAE researcher joins the centre in September as part of ongoing talent attraction and diversity efforts.

Sep – Oct

Complex Systems Society School

The first school of the Complex Systems Society Spain (CS3), on the science of complex systems (29 September–3 October).

Group photo of the Combinatorial Geometries research programme
Oct – Nov

Combinatorial Geometries

The MdM Focused Research Programme opens with advanced courses on polytopes and matroids, closing with a week-long conference.

October

XIII GEFENOL–DIFENSC Summer School

A summer school on the statistical physics of complex systems (6–10 October).

Oct – Nov

Advanced graduate courses

BGSMath graduate courses run on Concentration Inequalities for Holomorphic Functions (27 Oct–5 Nov) and on the P vs NP problem (3–14 Nov).

November

100xCiencia · Knowledge transfer

CRM Director Carme Cascante and KTU head David Romero join the SOMMa 100xCiencia meeting in Valencia (13–14 November), on science communication and knowledge transfer.

December

CERCA evaluation passed

The centre successfully completes its four-year CERCA evaluation, conducted by an international committee.

2025 – 26 · Recognition

Recognition on the world stage

Jezabel Curbelo receives the National Research Award for Young Researchers; Xavier Tolsa, Joaquim Ortega-Cerdà and Xavier Cabré are invited to ICM 2026 — Tolsa as a plenary speaker.

Centre de Recerca Matemàtica presents

A Year in Mathematics

Annual Report · MMXXV
Directed by
Carme Cascante
Executive Board
Marcel Guàrdia · Josep Alvarez · Joaquim Ortega · Joan Porti · Klaus Wimmer
Scientific Advisory Board
Ari Laptev (Chair) · Afonso Bandeira · Kathryn Hess · Victoria Gould · Boris Gutkin · Philippe Michel · Alessandra Micheletti · Mikhail Sodin · Juan Soler · Susanna Terracini · Katrin Wendland
Featuring the people
Senior Researchers
Josep Alvarez · Jaume Amorós · Ramon Antoine · Florent Balacheff · Guillem Blanco · Carlos d’Andrea · Javier J. Gutiérrez · Dolors Herbera · Joachim Kock · Martí Lahoz · Simone Marchesi · Rosa Maria Miró · Joan Carles Naranjo · Francesc Perera · Martín Sombra · Miguel Ángel Barja · Carles Broto · Robert Cardona · Natàlia Castellana · Joana Cirici · Immaculada Gálvez · Marta Mazzocco · Eva Miranda · Ignasi Mundet · Wolfgang Pitsch · Joan Porti · Gil Solanes · Francesc Bars · Paloma Bengoechea · Luis Dieulefait · Francesc Fité · Xavier Guitart · Marc Masdeu · Víctor Rotger · Tomás Alarcón · Marta Casanellas · Sílvia Cuadrado · Gissell Estrada-Rodríguez · Jesús Fernández · Eric Latorre · Josep Sardanyés · Toni Guillamón · Gemma Huguet · Alexandre Hyafil · Manuel Molano · Adrián Ponce · Àlex Roxin · Diego Vidaurre · Klaus Wimmer · Álvaro Corral · Marc Calvo · David Moriña · Timothy G. Myers · Pere Puig · Jorge Antezana · Carme Cascante · Albert Clop · Egor Kosov · Jordi Marzo · Joan Mateu · Artur Nicolau · Joaquim Ortega · Jordi Pau · Olli Saari · Sergey Tikhonov · Xavier Tolsa · Xavier Cabré · Gyula Csató · Albert Mas · Xavier Ros-Oton · Tomás Sanz · Inmaculada Baldomá · Andrew Clarke · Jezabel Curbelo · Amadeu Delshams · Kostiantyn Drach · Núria Fagella · Ernest Fontich · Marcel Guàrdia · Alejandro Haro · Xavier Jarque · Àngel Jorba · José Tomás Lázaro · Pau Martín · M. Teresa Martínez-Seara · Josep Masdemont · Mercè Ollé · Joan Torregrosa · Arturo Vieiro · Albert Atserias · Simeon Ball · Kolja Knauer · Richard Lang · Marc Noy · Arnau Padrol · Guillem Perarnau · Vincent Pilaud · Juan José Rué · Oriol Serra · Lluís Vena
Postdoctoral Researchers
Michele Fornea · Ielyaas Cloete · Roser Homs · Daria Stepanova · Gloria Cecchini · Maria Da Fonseca · Jens-Bastian Eppler · Demetrio Ferro · Lluís Hernández · Aikaterini Kalou · Gabriel Mel · Martijn Wokke · Lucy Charlotte Auton · Álvaro González · Udayraj Thorat · Batyrbek Allamzharov · Cristian González-Riquelme · Niyaz Tokmagambetov · Alberto Maione · Gustavo Rodrigues-Ferreira · Frank Trujillo · Tassio Naia
PhD Students
Lluís Llacer · Søren Dyhr · Pablo Nicolás · Javier Guillán · Oriol Llopis · Juan Arellano · Kevin Martínez · Amaia Vielba · Alexandra Antoniadou · Lucia de Arancibia · Pablo Crespo · Tomás D’Amelio · Alexandre García-Duran Castilla · Federico Poncio · Haowen Tang · Rachael Olwande · Miquel Saucedo · Joaquim Duran · Dídac Gil · Jordi Castellví
Internship Students
Iolanda Alonso · Jannis Bressgott · Francesca Cangialosi · Joan Casamitjana · Mariona Fucho · Tatiana González · Oskar James Martin · Guerau Orus · Lucía Torrescusa · Núria Velasco
Knowledge Transfer Unit
David Romero (Head of KTU) · Lucía Escudero · Marc Homs-Dones · Manel Mas · Daniel Cuadrillero
Research Support Staff
Patricia Alves · Ivan Cañamero · Jordi Cuni Dols · Sara Dos Santos · Jose Manuel Garcia de la Fuente · Ariadna Gutiérrez · Núria Hernández Martín · Gemma Martinez Barrera · Sara Martinez Redecillas · Jordi Mullor Tenas · Vanessa Ramirez Garcia · Anna Renter · Consol Roca Guillen · Claudia Ros · Vanessa Sánchez · Mari Paz Valero Navazo · Natalia Vallina · Pau Varela Rodriguez
…with a global community of more than 1,400 participants, from 66 countries, across six continents.
Centre de Recerca Matemàtica
Bellaterra Campus (UAB) · 08193 Cerdanyola del Vallès · [email protected]
A CERCA centre · ERCOM member · María de Maeztu Unit of Excellence
CC BY-SA 4.0 · MMXXV