Contents/conteúdo

Geometria em Lisboa Seminar   RSS

Planned sessions

Gonçalo Oliveira 29/09/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, Universidade Federal Fluminense, Brasil

$G_2$-monopoles (a summary)

This talk is aimed at reviewing what is known about $G_2$-monopoles and motivate their study. After this, I will mention some recent results obtained in collaboration with Ákos Nagy and Daniel Fadel which investigate the asymptotic behavior of $G_2$-monopoles. Time permitting, I will mention a few possible future directions regarding the use of monopoles in $G_2$-geometry.

Éveline Legendre 06/10/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, Université Paul Sabatier

Localizing the Donaldson-Futaki invariant

We will see how to represent the Donaldson-Futaki invariant as an intersection of equivariant closed forms. We will use it to express this invariant as the intersection on some specific subvarieties of the central fibre of the test configuration. As an application we provide a proof that for Kähler orbifolds the Donaldson-Futaki invariant is the Futaki invariant of the central fiber.

Xiuxiong Chen 13/10/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, Stony Brook University

On the space of Kähler metrics

Inspired by the celebrated $C^0, C^2$ and $C^3$ a priori estimate of Calabi, Yau and others on Kähler Einstein metrics, we will present an expository report of a priori estimates on the constant scalar curvature Kähler metrics. With this estimate, we prove the Donaldson conjecture on geodesic stability and the properness conjecture on Mabuchi energy functional.

This is a joint work with Cheng JingRui.

Tristan C. Collins 20/10/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, MIT

Yaron Ostrover 27/10/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, Tel Aviv University

Andrew Lobb 03/11/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, Durham University

Ana Rita Pires 10/11/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, University of Edinburgh

Many more infinite staircases in symplectic embedding functions

Silvia Anjos 17/11/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, Instituto Superior Técnico and CAMGSD

Stability of the symplectomorphism group of rational surfaces

Leonardo Macarini 24/11/2020, 17:00 — 18:00 Europe/Lisbon — Instituto Superior Técnicohttp://tecnico.ulisboa.pt
, Instituto Superior Técnico and CAMGSD

New consequences of convexity beyond dynamical convexity


Current organizers: Rosa Sena Dias, José Mourão.
Zoom password: send an email to one of the organizers to ask for the password.

CAMGSD FCT