I was affialiated with both the Bernoulli Institute (Mathematics) and the Van Swinderen Institute (Theoretical Physics), and I was supervised by Eric Bergshoeff and Roland van der Veen. My research interests include Differential Geometry, Lie theory, Homological Algebra and Mathematical Physics. I was also a joint organiser of the Basic Notions Seminar.
Please find my personal homepage at the site of RuG and my CV here.
J. Becerra, K. van Helden, Minimal generating sets of rotational Reidemeister moves, arXiv:2506.15628 [math.GT], pages 1-26
E. Bergshoeff, J. Figueroa-O'Farrill, K. van Helden, J. Rosseel, I. Rotko, T. ter Veldhuis, p -brane Galilean and Carrollian Geometries and Gravities. J.Phys.A 57 (2024) 24, 245205, arXiv:2308.12852 [hep-th], pages 1-58.
E. Bergshoeff, K. van Helden, J. Lahnsteiner, L. Romano, and J. Rosseel, Generalized Newton-Cartan Geometries for Particles and Strings, Class. Quant. Grav. 40, 075010 (2023), arXiv:2207.00363 [hep-th], pages 1-26.
K. van Helden, Classification of 2-term L∞-algebras, Journal of Homotopy and Related Structures (2024), 15122891, arXiv:2109.10202 [math.QA], pages 1–16.
My PhD thesis (University of Groningen, 2025)
My Master's thesis (University of Leiden, 2020)
My Bachelor's thesis (University of Leiden, 2018)
G structures and Spencer Cohomology, Research Seminar Algebra/Geometry/Topology Universität Greifswald, 8 May 2024
Differential Geometry in Non-Lorentzian Gravity, FotU Symposium, Groningen, 24 April 2024
Classification of 2-term L∞-algebras Geometry in Timisoara, Timisoara, 1 March 2024
Principal Bundles, Intrinsic Torsion and Spencer Cohomology GQT School, 30 August 2023
Principal Bundles and Intrinsic Torsion TU Delft Analysis Seminar, 6 June 2023
Intrinsic torsion in Galilean and Carrollian spacetimes from a mathematician’s perspective Non-relativistic strings and beyond, Nordita, 8 May 2023
Classification of 2-term L∞-algebras Diamant Symposium, 25 November 2022
Discrete Quantum Riemannian Geometry Fundamentals of the Universe symposium, 14 April 2022