### Seminars for Pure Mathematics

Aug 27 2024 |

General (FSU) |

Organizational meeting |

Geometry and Topology Seminar |

Time: 3:05 |

Location: 301 |

We'll gather speakers and schedules information for our seminar this Fall. All are invited. Information will be updated here: https://sites.google.com/view/fsu-gt-seminar |

Aug 29 2024 |

Jeremy Usatine (FSU) |

Crepant resolutions via stacks |

Algebra seminar |

Time: 3:05 |

Location: LOV 301 |

Consider an invariant that behaves nicely for smooth varieties, such as Euler number, Betti numbers, or Hodge numbers. Suppose we want a version of this invariant for singular varieties that sees inte... More |

Sep 5 2024 |

Matthew Winters (FSU) |

Rational torsion and reducibility for abelian varieties associated to newforms |

Algebra seminar |

Time: 3:05PM |

Location: LOV 301 |

Let f be a newform and A its associated abelian variety. We have shown before that for certain primes r, if A is an optimal semistable elliptic curve with reducible torsion subgroup A[r], then A has r... More |

Sep 12 2024 |

Benson Farb (University of Chicago) |

3-dimensional hypersurfaces and intermediate Jacobians |

Algebra seminar |

Time: 3:05 |

Location: Zoom |

Clemens-Griffiths discovered in 1971 a surprising connection between two questions (all terms will be defined in the talk) 1. When is a 3-dimensional hypersurface rational (i.e. ... More |

Sep 19 2024 |

Soumya Sankar (Utrecht University) |

Relations between Frobenius eigenvalues of abelian varieties over finite fields |

Algebra seminar |

Time: 3:05 |

Location: Zoom |

Elliptic curves over a finite field F_q come in two flavours: ordinary and supersingular. As q varies over powers of a fixed prime p, the eigenvalues of Frobenius of an ordinary elliptic curve are uni... More |

Oct 10 2024 |

Akash Sengupta (University of Waterloo) |

Uniform bounds on Sylvester-Gallai type configurations of polynomials |

Algebra seminar |

Time: 3:05 PM |

Location: Zoom |

The classical Sylvester-Gallai theorem says that if a finite set of points in the Euclidean plane has the property that the line joining any two points contains a third point from the set, then all th... More |

Oct 17 2024 |

Pedro Souza (Goethe-Universität, Frankfurt) |

On the topology of the moduli space of tropical Z/pZ-covers |

Algebra seminar |

Time: 3:05PM |

Location: Zoom |

We study the topology of the moduli space of (unramified) Z/pZ-covers of tropical curves of genus g≥2 where p is a prime number. By recent work of Chan-Galatius-Payne, the (reduced) homology ... More |

Oct 24 2024 |

Matteo Costantini (Universität Duisburg-Essen) |

Spaces of flat surfaces |

Algebra seminar |

Time: |

No location for this even specified. |

A non-zero holomorphic one form on a Riemann surface endows it with a flat metric with conical singularities. Such an object is called flat surface. While spaces of flat surfaces with fixed typ... More |

Oct 28 2024 |

Hung-Chun Yu (FSU) |

An Introduction to Algebraic K-Theory |

Candidacy Exam |

Time: 1pm |

Location: 204A |

Oct 31 2024 |

Priyankur Chaudhuri (University of Milan) |

Algebraically integrable foliations and canonical bundle formula |

Algebra seminar |

Time: 3:05PM |

Location: Zoom |

Situations in which the canonical divisor of a smooth projective variety is the pullback of a divisor on a lower dimensional variety, are quite commonplace in higher dimensional algebraic geometry. In... More |

Nov 5 2024 |

Sam Ballas (FSU) |

Classical and Exotic Dehn Filling |

Geometry and Topology |

Time: 3:05 |

Location: 301 |

Dehn filling is a topological operation where one starts with a 3-manifold, M, with torus boundary and builds a closed manifold by gluing a solid torus to it along their respective boundaries. There a... More |

Nov 7 2024 |

Ishan Banerjee (Ohio State University) |

Monodromy and vanishing cycles for curves in an algebraic surface |

Algebra Seminar |

Time: 3:05 |

Location: LOV 301 |

This talk will be about the monodromy group associated to a family of algebraic curves in an algebraic surface as a subgroup of the mapping class group. I will start by surveying some older results in... More |