Palestras e Seminários
30/04/2026
14:00
Sala 5-003
Palestrante: Ester Beatriz
https://us02web.zoom.us/j/82671629244?pwd=cWVTajk4MDhsVXN1V2piV2gxaTFlUT09
Responsável: Maykel Boldrin Belluzi (maykelbelluzi@ufscar.br)
Seminários em Sistemas Dinâmicos Não Lineares
Resumo: In this talk, I introduce models describing generic spatial singularities (e.g., the Big Bang) in modified gravity theories. These perturb Bianchi models from general relativity (GR) via a parameter v ∈ (0, 1), recovering GR at v = 1/2. I overview the invariant sets (Bianchi types) and their dynamics, focusing on the type IX attractor for v ∈ (1/2, 1), proved in [1]. This establishes an analogue of Ringstr¨om’s attractor theorem in GR [3, 4] for supercritical theories.
