Abisko, 2025
Abisko, 2025
Postdoc at the Leibniz Universität Hannover since October 2024.
Before, I was a postdoc at the University of Paris-Saclay with S. Zimmermann.
I obtained my PhD in 2022 from the University of Basel, under the supervision of J. Blanc.
Email: fong@math.uni-hannover.de
Research interests: algebraic groups, birational geometry.
Isotrivial elliptic surfaces in positive characteristic, j.w. M. Maccan, to appear in Documenta Mathematica.
Automorphism groups of \PP^1-bundles over ruled surfaces, submitted.
Connected algebraic subgroups of groups of birational transformations not contained in a maximal one, j.w. S. Zikas, C. R. Math. Acad. Sci. Paris, Volume 361 (2023), 313-322.
Algebraic subgroups of the group of birational transformations of ruled surfaces, Epijournal de Géométrie Algébrique, Volume 7 (2023), Article n.13.
Connected algebraic groups acting on algebraic surfaces, Annales de l'Institut Fourier, Tome 74 (2024) no. 2, pp. 545-587.
Maximal automorphism groups of surfaces, j.w. M. Maccan, to appear in ZAG seminar proceedings.
Isotrivial elliptic surfaces (14 May 2025, Group schemes actions in low dimension, Laboratoire Paul Painlevé)
Isotrivial elliptic surfaces (13 May 2025, Seminar Algebra und Geometry, Universität Basel)
Algebraic subgroups of groups of birational transformations (20 January 2025, Oberseminar, Ruhr University Bochum)
Isotrivial elliptic surfaces (17 December 2024, Oberseminar Algebra, Universität Jena)
Algebraic subgroups of groups of birational transformations (05 December 2024, Oberseminar, Leibniz Universität Hannover)
Sous-groupes algébriques maximaux (22 October 2024, Groupes de Cremona : sous-groupes maximaux, Université de Rennes 1)
Isotrivial elliptic surfaces (9 September 2024, Fano varieties in Cetraro)
Automorphism groups of \PP^1-bundles over ruled surfaces (19 February 2024, Séminaire de Géométrie Complexe, Institut Elie Cartan de Lorraine)
Automorphism groups of \PP^1-bundles over ruled surfaces (16 February 2024, Séminaire Géométries, Institut Camille Jordan)
Automorphism groups of \PP^1-bundles over ruled surfaces (08 February 2024, Séminaire de Géométrie et de Topologie de Marseille, Institut de mathématiques de Marseille)
Automorphism groups of \PP^1-bundles over ruled surfaces (23 January 2024, Séminaire Géométrie Algébrique, Laboratoire Paul Painlevé)
Automorphism groups of \PP^1-bundles over ruled surfaces (19 January 2024, Séminaire Géométrie, Institut de mathématiques de Bordeaux)
Automorphism groups of \PP^1-bundles over ruled surfaces (19 December 2023, Algebraic Geometry conference, Universität Basel)
Automorphism groups of \PP^1-bundles over ruled surfaces (22 May 2023, Séminaire Algèbre et Géométries, Institut Fourier)
Automorphism groups of \PP^1-bundles over ruled surfaces (23 March 2023, Workshop Fibalga, IMAG)
Sous-groupes algébriques connexes du groupe des transformations birationnelles de certaines variétés algébriques (21 March 2023, SAGA, LMO)
Algebraic subgroups of the group of birational transformations of ruled surfaces (12-13 May 2022, Basel-Dijon-EPFL meeting, EPFL)
Groupes d'automorphismes de \PP^1-fibrés (24 March 2022, Séminaire Groupes, Algèbre et Géométrie, Université de Poitiers)
Groupes d'automorphismes de \PP^1-fibrés (16-18 March 2022, Colloque tournant TLAG 2022 , Institut de Mathématiques de Bourgogne)
Connected algebraic groups acting on surfaces (1-2 October 2020, Basel-Dijon-EPFL joint seminars, Institut de Mathématiques de Bourgogne)
Connected algebraic groups acting birationally on ruled surfaces (23-27 September 2019, Del Duca Workshop on Cremona groups, Institut de mathématiques de Toulouse)
23-27 June 2025: Ecole d'été 2025 - Le groupe de Cremona
14-16 May 2025: Group schemes actions in low dimension
3-4 April 2025: Basel-Dijon-EPFL-Neuchâtel-Zürich meeting
21 March 2025: Aspects of Algebraic Geometry
20-21 March 2025: Geometry of Arrangements
18-19 March 2025: Algebraic Geometry in Hannover
13-17 January 2025: 14th Swiss-French workshop in algebraic geometry
22-24 October 2024: Groupes de Cremona : sous-groupes maximaux
30 September - 2 October 2024: Workshop on Algebraic Cycles
9-13 September 2024: Fano varieties in Cetraro
30 June - 5 July 2024: Birational Geometry and dynamics
10-14 June 2024: Conférence EpiGA 2024
17-22 March 2024: K-Stability, Birational Geometry and Mirror Symmetry
29 January - 2 February 2024: 13th Swiss-French workshop in algebraic geometry
18-20 octobre 2023 : Journées GAGC 2023
22-26 May 2023: Groupes de transformations birationnelles, complexes cubiques, invariants motiviques
23-24 March 2023: Workshop Fibalga
30 January - 3 February 2023: 12th Swiss-french workshop in algebraic geometry
12-16 December 2022: Birational Complexity of Algebraic Varieties
5-9 December 2022: Graduate Workshop on the Birational Complexity of Algebraic Varieties
21-25 November 2022: Edge Days 2022
6-7 October 2022: Basel-Dijon-EPFL Meeting
13-17 June 2022: Birational Geometry Conference
23-27 May 2022: GAeL XXIX
16-20 May 2022: Invariants in Algebraic Geometry
12-13 May 2022: Basel-Dijon-EPFL meeting
7-8 April 2022: Algebraic Groups and Geometric Invariant Theory
16-18 March 2022: Colloque tournant TLAG
10-14 January 2022: 11th Swiss-french workshop in algebraic geometry
20-24 September 2021: 10th Swiss-french workshop in algebraic geometry
1-2 October 2020: Basel-Dijon-EPFL meeting
13-17 January 2020: 9th Swiss-french workshop in algebraic geometry
18-20 November 2019: 20th Graduate colloquium
7-8 November 2019: Basel-Dijon-EPFL meeting
23-27 September 2019: Del Duca Workshop on Cremona groups
2-6 September 2019: Curves and surfaces
22-26 July 2019: Del Pezzo surfaces and Fano varieties
4-5 June 2019: Basel-Dijon-EPFL meeting
27-29 May 2019: Affine algebraic geometry and transformation groups - in honour of Lucy Moser-Jauslin's 60th birthday
May 2019: SMS Doctoral Day
7-11 January 2019: 8th Swiss-french workshop in algebraic geometry
26-30 November 2018: Rencontre Del Duca : Groups of Birational Transformations
10-11 October 2018: Basel-Dijon-EPFL meeting
5-7 September 2018: Holomorphic Elliptic Geometry and Group Actions
3-4 May 2018: Basel-Dijon-EPFL meeting
29-30 March 2018: Mini-Workshop Algebraic Geometry