This Conference is part of the
MDM FOCUSED RESEARCH PROGRAMME ON COMBINATORIAL GEOMETRIES & GEOMETRIC COMBINATORICS
Closing conference on Combinatorial Geometries and Geometric Combinatorics
From November 24, 2025
to November 28, 2025
Registration deadline 02 / 11 / 2025
POSTERS
INVITED SPEAKERS
Federico Ardila | San Francisco State University
Spencer Backman | University of Vermont
Kristóf Bérczi | Eötvös Loránd University
Marie Brandenburg | Universität Bochum
César Ceballos | Technische Universität Graz
Giulia Codenotti | Freie Universitat Berlin
Péter Csikvari | Alfréd Rényi Institute of Mathematics
Galen Dorpalen-Barry | Texas A&M University
Luis Ferroni | Università di Pisa
Alex Fink | Queen Mary University of London
Relinde Jurrius | Netherland Defence Academy
Georg Loho | Freie Universität Berlin & Universiteit Twente
Chiara Meroni | ETH Zürich
Eran Nevo | Universidad de Valladolid & Hebrew University
Francisco Santos | Universidad de Cantabria
Ben Smith | University of Lancaster
Organising Committee
Kolja Knauer | Universitat de Barcelona – Centre de Recerca Matemàtica
Anna de Mier | Universitat Politècnica de Catalunya
Arnau Padrol | Universitat de Barcelona – Centre de Recerca Matemàtica
Julian Pfeifle | Universitat Politècnica de Catalunya
Vincent Pilaud | Universitat de Barcelona – Centre de Recerca Matemàtica
Scientific Committee
Martina Juhnke | Universität Osnabrück
Peter Nelson | University of Waterloo
Felipe Rincón | Queen Mary University of London
Martha Yip | University of Kentucky
Schedule
Monday November 24th | Tuesday November 25th | Wednesday November 26th | Thursday November 27th | Friday November 28th | |
09:30 – 09:50 | Registration | ||||
09:50 – 10:00 | Welcome | ||||
10:00 – 11:00 | Federico Ardila San Francisco State University | Georg Loho Freie Universität Berlin & Universiteit Twente | Giulia Codenotti Freie Universitat Berlin | Luis Ferroni Università di Pisa | Marie Brandenburg Universität Bochum |
11:00 – 11:45 | Coffee break + posters | Coffee break + posters | Coffee break + posters | Coffee break + group picture + posters | Coffee break + posters |
11:45 – 12:15 | Kevin Kuehn Technical University of Berlin | Elena Hoster Ruhr University Bochum | Tamás Schwarz London School of Economics | Lena Weis Technical University of Berlin | Lilla Tóthmérész Hun-Ren Alfréd Rényi Institute of Mathematics |
12:15 – 13:15 | Chiara Meroni ETH Zürich | Alex Fink Queen Mary University of London | Cesar Ceballos Technische Universität Graz | Ben Smith University of Lancaster | Francisco Santos Universidad de Cantabria |
13:15 – 14:45 | Lunch | ||||
14:45 – 15:45 | Eran Nevo Universidad de Valladolid & Hebrew University | Galen Dorpalen-Barry Texas A&M University | Relinde Jurrius Netherland Defence Academy | ||
15:45 – 16:00 | Break | Break | |||
16:00 - 17:00 | Spencer Backman University of Vermont | Kristóf Bérczi Eötvös Loránd University | Péter Csikvari Alfréd Rényi Institute of Mathematics | ||
20:00 | Social dinner | ||||
Contributions
Participants wishing to give a talk can indicate their preference during registration by selecting the appropriate option on the form.
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- Deadline for submissions: October 17, 2025
- Notification of acceptance: October 27, 2025
- Deadline for submissions: October 17, 2025
LIST OF PARTICIPANTS
| Name | Institution |
|---|---|
| Relinde Jurrius | Netherlands Defence Academy |
| Anouk Brose | University of California Davis |
| William Dugan | Universitat de Barcelona |
| Hoi Ping Luk | Západoceská univerzita v Plzni |
| Kolja Knauer | Universitat de Barcelona – Centre de Recerca Matemàtica |
| Chiara Meroni | ETH Institute for Theoretical Studies |
| Georg Loho | Freie Universität Berlin & Universiteit Twente |
| Louis Marin | Université Gustave Eiffel |
| Val Pinciu | Southern Connecticut State University |
| Giorgi Khimshiashvili | Ilia State University, Tbilisi, Georgia |
| Lilla Tóthmérész | Hun-Ren Alfréd Rényi Institute of Mathematics |
| Nick Early | Institute for Advanced Study Princeton |
| Danai Deligeorgaki | Universitat de Barcelona |
| Vincent Pilaud | Universitat de Barcelona |
| Arnau Padrol Sureda | Universitat de Barcelona |
| Anna de Mier | Universitat Politècnica de Catalunya |
| Carles Padró Laimon | Universitat Politècnica de Catalunya |
| Julian Pfeifle | Universitat Politècnica de Catalunya |
| Francisco Santos Leal | Universidad de Cantabria |
| David Alcántara | Universidad de Cantabria |
| Mónica Blanco | Universidad de Cantabria |
| Aram Dermenjian | Universidad de Sevilla |
| Eran Nevo | Universidad de Valladolid |
| Galen Dorpalen-Barry | Texas A&M University |
| Cesar Ceballos | Graz University of Technology |
| Leo Jiang | University of Toronto |
| Félix Gélinas | York University |
| Egor Bakaev | University of Copenhagen |
| Teemu Lundström | Aalto University |
| Baptiste Gros | University of Montpellier |
| Marguerite Bin | University of Lorraine |
| Matthew Dupraz | Free University of Berlin |
| Giulia Codenotti | Free University of Berlin |
| Jan Stricker | Goethe University Frankfurt |
| Florian Rieg | Goethe University Frankfurt |
| Raman Sanyal | Goethe University Frankfurt |
| Marie Brandenburg | Ruhr University Bochum |
| Alexandros Leivaditis | Ruhr University Bochum |
| Chiara Giardino | Ruhr University Bochum |
| Christian Stump | Ruhr University Bochum |
| Elena Hoster | Ruhr University Bochum |
| Chenying Lin | University of Regensburg |
| Zoe Geiselmann | Technical University of Berlin |
| Kevin Kuehn | Technical University of Berlin |
| Lena Weis | Technical University of Berlin |
| Andrei Balakin | Technical University of Berlin |
| Leonie Mühlherr | Bielefeld University |
| Lukas Kühne | Bielefeld University |
| Niraj Velankar | University of Greifswald |
| Germain Poullot | University of Osnabrück |
| Torben Donzelmann | University of Osnabrück |
| Jhon Bladimir Caicedo Portilla | University of Osnabrück |
| Mieke Fink | University of Osnabrück |
| Martina Juhnke | University of Osnabrück |
| Péter Csikvári | Eötvös Loránd University |
| Dániel Garamvölgyi | Eötvös Loránd University |
| Kristóf Bérczi | Eötvös Loránd University |
| Lazar Guterman | Hebrew University of Jerusalem |
| Dmitry Mineev | Bar-Ilan University |
| Luca Moci | University of Bologna |
| Luis Ferroni | University of Pisa |
| Eliana Tolosa Villarreal | University of Genoa |
| Lorenzo Venturello | University of Siena |
| Kris Shaw | University of Oslo |
| Krishna Menon | Royal Institute of Technology |
| Adam Schweitzer | Royal Institute of Technology |
| Emil Verkama | Royal Institute of Technology |
| Leonardo Saud Maia Leite | Royal Institute of Technology |
| Klara Stokes | Umeå University |
| Jakob Hultgren | Umeå University |
| Leonid Monin | Swiss Federal Institute of Technology in Lausanne |
| Jette Gutzeit | University of Zurich |
| Alex Fink | Queen Mary University of London |
| Felipe Rincón | Queen Mary University of London |
| Tamás Schwarcz | London School of Economics |
| Alison La Porta | University of St Andrews |
| Ben Smith | Lancaster University |
| Lauren Nowak | University of Washington - Seattle |
| Juliana Curtis | University of Washington - Seattle |
| Natasha Crepeau | University of Washington - Seattle |
| Yirong Yang | University of Washington - Seattle |
| Spencer Backman | University of Vermont |
| Federico Ardila-Mantilla | San Francisco State University |
INVOICE/PAYMENT INFORMATION
IF YOUR INSTITUTION COVERS YOUR REGISTRATION FEE: Please note that, in case your institution is paying for the registration via bank transfer, you will have to indicate your institution details and choose “Transfer” as the payment method at the end of the process.
UPF | UB | UPC | UAB
*If the paying institution is the UPF / UB/ UPC / UAB, after registering, please send an email to comptabilitat@crm.cat with your name and the institution internal reference number that we will need to issue the electronic invoice. Please, send us the Project code covering the registration if needed.
Paying by credit card
IF YOU PAY VIA CREDIT CARD but you need to provide the invoice to your institution to be reimbursed, please note that we will also need you to send an email to comptabilitat@crm.cat providing the internal reference number given by your institution and the code of the Project covering the registration (if necessary).
LODGING INFORMATION
ON-CAMPUS AND BELLATERRA
BARCELONA AND OFF-CAMPUS
Acknowledgements
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CRM Code of Conduct
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| MONDAY 24th November | TUESDAY 25th November | WEDNESDAY 26th November | THURSDAY 27th November |
| Danai Deligeorgaki | Universitat de Barcelona | Ehrhart Positivity of Panhandle Matroids and a Bound for Paving Matroids | Aram Dermenjian | Universidad de Sevilla | Thin MC Left Regular Bands | Andrei Balakin | Technical University of Berlin | Polytopes from Maxout Neural Networks | Egor Bakaev | University of Copenhagen | Neural network expressivity and simplex subdivision |
| William Dugan | Universitat de Barcelona | On the f-vector of flow polytopes for complete graphs | Zoe Geiselmann | Technical University of Berlin | Exact Johnson solids in OSCAR | Anouk Brose | University of California Davis | On Lattice Diameters | Leo Jiang | University of Toronto | Topology of real matroid Schubert varieties |
| Félix Gélinas | York University | Source characterization of the hypegraphic posets | Lazar Guterman | Hebrew University of Jerusalem | Matroids arising from algebraic shifting | Jhon Bladimir Caicedo | University of Osnabrück | Unimodular triangulation for s-lecture hall simplices | Alison La Porta | University of St Andrews | Rigidity theory for symmetric frameworks |
| Teemu Lundström | Aalto University | Two-Dimensional Faces of Order and Chain Polytopes | Lauren Nowak | University of Washington – Seattle | Mixed Volumes of Normal Complexes | Natasha Crepeau | University of Washington – Seattle | Generalized break divisors and triangulations of Lawrence polytopes | Leonid Monin | Swiss Federal Institute of Technology in Lausanne | Chow quotients in Kazhdan–Lusztig–Stanley theory |
| Yirong Yang | University of Washington – Seattle | Solving puzzles of shellable simplicial spheres | Germain Poullot | University of Osnabrück | Inductive construction of deformed permutahedra | Krishna Menon | Royal Institute of Technology | A branch statistic for trees | Leonardo Saud Maia | Royal Institute of Technology | Order polytopes of crown posets |
| Jan Stricker | Goethe University Frankfurt | Hamiltonicity of Simplicial and Supersolvable Arrangements | Klara Stokes | Umeå University | Groups represented by incidence geometries | Emil Verkama | Royal Institute of Technology | Computing Chow classes of matroids by enumerating Young Tableaux |
| THURSDAY 27th November |
| Egor Bakaev | University of Copenhagen | Neural network expressivity and simplex subdivision |
| Leo Jiang | University of Toronto | Topology of real matroid Schubert varieties |
| Alison La Porta | University of St Andrews | Rigidity theory for symmetric frameworks |
| Leonid Monin | Swiss Federal Institute of Technology in Lausanne | Chow quotients in Kazhdan–Lusztig–Stanley theory |
| Leonardo Saud Maia | Royal Institute of Technology | Order polytopes of crown posets |
| Emil Verkama | Royal Institute of Technology | Computing Chow classes of matroids by enumerating Young Tableaux |
| WEDNESDAY 26th November |
| Andrei Balakin | Technical University of Berlin | Polytopes from Maxout Neural Networks |
| Anouk Brose | University of California Davis | On Lattice Diameters |
| Jhon Bladimir Caicedo | University of Osnabrück | Unimodular triangulation for s-lecture hall simplices |
| Natasha Crepeau | University of Washington – Seattle | Generalized break divisors and triangulations of Lawrence polytopes |
| Krishna Menon | Royal Institute of Technology | A branch statistic for trees |
| Klara Stokes | Umeå University | Groups represented by incidence geometries |
| TUESDAY 25th November |
| Aram Dermenjian | Universidad de Sevilla | Thin MC Left Regular Bands |
| Zoe Geiselmann | Technical University of Berlin | Exact Johnson solids in OSCAR |
| Lazar Guterman | Hebrew University of Jerusalem | Matroids arising from algebraic shifting |
| Lauren Nowak | University of Washington – Seattle | Mixed Volumes of Normal Complexes |
| Germain Poullot | University of Osnabrück | Inductive construction of deformed permutahedra |
| Jan Stricker | Goethe University Frankfurt | Hamiltonicity of Simplicial and Supersolvable Arrangements |
| MONDAY 24th November |
| Danai Deligeorgaki | Universitat de Barcelona | Ehrhart Positivity of Panhandle Matroids and a Bound for Paving Matroids |
| William Dugan | Universitat de Barcelona | On the f-vector of flow polytopes for complete graphs |
| Félix Gélinas | York University | Source characterization of the hypegraphic posets |
| Teemu Lundström | Aalto University | Two-Dimensional Faces of Order and Chain Polytopes |
| Yirong Yang | University of Washington – Seattle | Solving puzzles of shellable simplicial spheres |