Moduli Stacks

Seminar organised by Giulio Orecchia (g [dot] orecchia [at] math [dot] leidenuniv [dot] nl), Raymond van Bommel (r [dot] van [dot] bommel [at] math [dot] leidenuniv [dot] nl) and Erik Visse (h [dot] d [dot] visse [at] math [dot] leidenuniv [dot] nl)

Thanks to Jinbi Jin for providing the template of this webpage.


Time and location

Meeting 0: Thursday 10 September, 10:30-11:00, common room

Meeting 1: Thursday 24 September, 09:45-11:30, room B03

Meeting 2: Friday 9 October, 10:00-12:00, room B03

Meeting 3: Thursday 15 October, 09:45-11:30, room B03

Meeting 4: Friday 23 October, 11:00-13:00, room B03

Meeting 5: Friday 30 October, 11:00-13:00, room 302-304

Meeting 6: Wednesday 4 November, 11:00-13:00, room B03

Meeting 7: Friday 20 November, 11:00-13:00, room B03

Meeting 8: Wednesday 2 December, 15:00-17:00, room B03



See program below. We will treat the algebraic stack \(\mathcal{M}_g\), look at the definition, properties, some applications and maybe its compactification.


We will also aim to treat at least one (but hopefully multiple) of the following topics.




25 September Giulio Orecchia The moduli stack \(\mathcal{M}_g\)→ Giulio Orecchia
9 October Raymond van Bommel The algebraic stack \(\mathcal{M}_g\)→ Raymond van Bommel
15 October Carlo Pagano Some very basic deformation theory→ Carlo Pagano
23 October David Holmes Moduli of stable curves→ David Holmes
30 October David Holmes / Erik VisseContinuation of last week's talk / Introduction to stable maps→ Erik Visse
4 November Erik Visse Kontsevich' formula for rational curves in the plane
20 November Giulio Orecchia Gromov-Witten invariants→ Giulio Orecchia
2 December David Holmes Quantum cohomology→ David Holmes