I am a professor agregat at the Departament de Matemàtiques i Informàtica at the Universitat de Barcelona.
Before coming here, I held postdoctoral positions at Universität Heidelberg, where I worked in the Theoretical Computer Science and Discrete Mathematics group led by Prof. Felix Joos, and at TU Ilmenau, where I worked with Univ.-Prof. Dr. Yury Person in the Large Networks and Random Graphs group. Before that, I was a PhD student at the University of Birmingham, where I worked under the supervision of Daniela Kühn and Deryk Osthus.
My research interests lie in combinatorics, particularly in extremal and probabilistic combinatorics and their interface with computer science, as well as in additive combinatorics.
Postal address: Departament de Matemàtiques i Informàtica, Universitat de Barcelona, Gran Via 585, 08007 Barcelona
Email: aespuny [at] ub.edu
Office: Despatx P1 14
Here are some of my most recent or favourite papers or preprints:
Graph factors and powers of Hamilton cycles in the budget-constrained random graph process (preprint)
with Frederik Garbe, Tássio Naia and Zak Smith
Submitted
On the local resilience of random geometric graphs with respect to connectivity and long cycles (preprint)
with Lyuben Lichev and Alexandra Wesolek
Submitted
Path decompositions of random directed graphs (preprint)
with Viresh Patel and Fabian Stroh
Submitted
Spanning F-cycles in random graphs (preprint) (doi)
with Yury Person
Combinatorics, Probability and Computing 32 (2023), 833–850
Hamiltonicity of random subgraphs of the hypercube (preprint) (doi)
with Padraig Condon, António Girão, Daniela Kühn and Deryk Osthus
Memoirs of the AMS 304.1534 (2024), 132
A full list of publications is available here.
List of past events
I am a member of the program committee for the 2026 Discrete Mathematics Days, to be held in Granada, 29 June–1 July 2026.
Together with Irene Gil Fernández and Irene Parada, I organised a special session on computational geometry and graph theory for the VII Congreso de Jóvenes Investigadores de la RSME, Bilbao, 13-17 January 2025.
I was a member of the organising committee for the Early Career Researchers in Combinatorics workshop, Edinburgh, 15–19 July 2024.
I was a member of the scientific committee for the 2024 Discrete Mathematics Days, Alcalá de Henares, 3–5 July 2024.
Together with Olaf Parczyk, I organised a minisymposium on Extremal and Probabilistic Combinatorics for the 2023 DMV Jahrestagung, Ilmenau, 25–28 September 2023.
I organised a special session on extremal and probabilistic graph theory for the VI Congreso de Jóvenes Investigadores de la RSME, León, 6–10 February 2023.
I was a member of the scientific committee for the 4th BYMAT Conference, Valencia (online), 9–11 November 2022.
I was a member of the scientific committee for the 3rd GAPCOMB workshop, Montserrat, 10–13 July 2022.
I was a member of the organising committee for Eurocomb 2021, Barcelona (online), 6–10 September 2021.
I was a member of the organising committee for the 3rd BYMAT Conference, Valencia (online), 1–3 December 2020.
I was a member of the grants committee for the 2nd BYMAT Conference, Madrid, 20–24 May 2019.
I was chair of the organising committee for the Young Mathematicians Colloquium, Birmingham, 18 April 2018.
I was coordinator of the organising committee for the XVII Encuentro Nacional de Estudiantes de Matemáticas, Barcelona, 25–30 July 2016.
I was recently awarded the Ramon Llull Prize, in its 2024 edition, for my PhD thesis.
For some years, I was editor in chief for TEMat, a Spanish journal for the divulgation of mathematics written by students.
For some years, I was an editor for the Arhimede Mathematical Journal, a journal aimed at students working on and training for mathematical Olympiads.
I am a member of the Publications Committee of the Real Sociedad Matemática Española.
For some years I was also a member of its Young Mathematicians Committee. For any issue related to young mathematicians, please contact at jovenes [at] rsme.es.