Research

Publications

Preprints

M. Lau, I. Mărcuţ, Multiplicative Ehresmann connections for Lie groupoid fibrations, arXiv:2604.22394.

Talks

Multiplicative Ehresmann connections for Lie groupoid fibrations; Methods of Noncommutative Topology and Geometry Seminar, University of Warsaw (Poland) (Online), Apr. 10, 2026
Multiplicative Ehresmann connections; Bari-Salerno Differential Geometry Days, Univ. degli Studi di Salerno (Italy), Feb. 11, 2026
Lie groupoids; Holonomy and Monodromy of foliations; Seminar: Non-commutative geometry of foliations, RU Nijmegen (Netherlands), Mar. 20, 2025

Posters

Completeness of multiplicative Ehresmann connections on fibred Lie groupoids; Interactions of Poisson Geometry, Lie Theory and Symmetry, IST Lisbon (Portugal), Jul. 2, 2025

Conferences, Workshops and Schools

Upcoming

2026

Higher Structures in Pavia, Univ. di Pavia (Italy) Jun. 17 - 19
Poisson Geometry Summer School, Univ. of Antwerp (Belgium) Aug. 3 - 7
Poisson 2026, KU Leuven (Belgium) Aug. 10 - 14

Past

2026

Higher Geometric Structures along the Lower Rhine, UU Utrecht (Netherlands) Apr. 16 - 17
Bari-Salerno Differential Geometry Days, Univ. degli Studi di Salerno (Italy) Feb. 9-11

2025

Around Singularities in Poisson Geometry, IASM Hangzhou (China) (Attended online) Aug. 3 - 8
Interactions of Poisson Geometry, Lie Theory and Symmetry, IST Lisbon (Portugal) Jun. 30 - Jul. 4
Seminar: Non-commutative geometry of foliations, RU Nijmegen Feb. 1 - Jul. 31
Higher Geometric Structures along the Lower Rhine XVIII, RU Nijmegen (Netherlands) Jan. 23 - 24
Central Europe Relativity Seminar 15, RU Nijmegen (Netherlands) Jan. 22 - 23

2024

Poisson aan de Waal 4, RU Nijmegen and UU Utrecht (Netherlands) Jun. 27 - 28