Seminario de Geometría Algebraica

Seminario de Geometría Algebraica
2025-06-12
13:30hrs.
Juan Pablo Zúñiga. UC Chile
Baby: Geometría Discreta de Las Superficies del Pezzo
sala 2
2025-06-10
13:30hrs.
Giancarlo Urzúa. UC Chile
Exceptional Vector Bundles en el Plano
sala 2
2025-06-05
13:30hrs.
Marcos Canedo. UC Chile
Baby: a Rational Homology Disk Smoothing of W_{P,q,r} Parte 2
sala 2
2025-06-03
13:30hrs.
Juan Pablo Zúñiga. UC Chile
Hacking Exceptional Collections
sala 2
2025-05-29
13:30hrs.
Marcos Canedo. UC Chile
Baby: a Rational Homology Disk Smoothing of W_{P,q,r}
sala 2
2025-05-27
13:30hrs.
Sebastián Torres. Utfsm
Categorias Derivadas, Objectos Excepcionales, S.o.d.s
sala 2
2025-05-15
13:30hrs.
Giancarlo Urzúa. UC Chile
Baby: Intro a Geo Birracional 2 (Mmp for W-Surfaces)
sala 2
2025-05-13
13:30hrs.
Giancarlo Urzúa. UC Chile
Hacking Vector Bundles 1
sala 2
2025-05-08
13:30hrs.
Giancarlo Urzúa. UC Chile
Baby: Mini Introducción a Geometría Birracional
sala 2
2025-05-06
13:30hrs.
Sid Mathur. UC Chile
Vector Bundles in Projective Spaces
sala 2
2025-04-24
13:30hrs.
Giancarlo Urzúa. UC Chile
Baby: Mmp y Curvas Racionales Con Grado Arbitrariamente Alto en Superficies K3
sala 2
2025-04-22
13:30hrs.
Yulieth Prieto. UC Chile
Transitioning to higher dimensions
sala 2
Abstract:
What is currently known? What are the main obstructions? Lagrangian fibrations in IHS varieties.
2025-04-15
13:30hrs.
Yulieth Prieto. UC Chile
Elliptic fibrations on K3 surfaces
sala 2
Abstract:
Invariants of elliptic fibrations on K3 surfaces. Applications of Torelli Theorem for the moduli of K3 surfaces admitting elliptic fibrations. Lattice-based criteria for the existence of elliptic fibrations. The Shioda formula.
2025-04-10
13:30hrs.
Sebastián Flores. UC Chile
Baby: Superficies de Tipo General a Partir de Superficies K3 y Curvas Racionales
sala 2
2025-04-08
13:30hrs.
Yulieth Prieto. UC Chile
The bilinear form of the second cohomology group and the Néron-Severi lattice
sala 2
Abstract:
Basic definition of lattices. The discriminant group. The bilinear form associated with the cohomology of a K3 surface and the abstract K3 lattice. The problem of existence, uniqueness, and embedding of lattices. The Beauville-Bogomolov form for IHS manifolds.
2025-04-03
13:30hrs.
Marcos Canedo. UC Chile
Baby: Deformaciones de Superficies Algebraicas y Obstrucciones
sala 2
2025-04-01
13:30hrs.
Yulieth Prieto. UC Chile
Automorphism Groups and Quotients
sala 2
Abstract:
Symplectic and non-symplectic. General properties of these automorphisms. Quotients of K3 surfaces by automorphisms of finite order. Applications of Torelli Theorem. Comments on the automorphism group for the Hilbert scheme of points on K3 surfaces. 
https://sites.google.com/view/yuliethprietom/teaching/seminario-puc?authuser=0
2025-03-27
13:30hrs.
Marcos Canedo. UC Chile
Baby: Superficies Singulares y No Singulares
sala 2
2025-03-25
13:30hrs.
Yulieth Prieto. UC Chile
Teorema de Torelli para superficies K3
sala 2
Abstract:

  • Torelli Theorem for K3 surfaces and its proof. Period map. Moduli of polarized K3 surfaces (the case of Kummer surfaces). Formulation of Torelli Theorem for IHS manifolds. 

2025-03-20
13:30hrs.
Marcos Canedo. UC Chile
Baby: Fracciones Continuas Negativas, Cadenas de Wahl, Fracciones del 0
sala 2