Stabilization of the Homotopy Groups of the Moduli Spaces of k-Higgs Bundles

Autor: Ronald A. Zúñiga-Rojas
Jazyk: Spanish; Castilian
Rok vydání: 2018
Předmět:
Zdroj: Repositorio UN
Universidad Nacional de Colombia
instacron:Universidad Nacional de Colombia
Popis: The work of Hausel proves that the Bia\l{}ynicki-Birula stratification of the moduli space of rank two Higgs bundles coincides with its Shatz stratification. He uses that to estimate some homotopy groups of the moduli space of $k$-Higgs bundles of rank two. Unfortunately, those two stratifications do not coincide in general. Here, the objective is to present a different proof of the stabilization of the homotopy groups of $\mathcal{M}^k(2,d)$, and generalize it to $\mathcal{M}^k(3,d)$, the moduli spaces of $k$-Higgs bundles of degree $d$, and ranks two and three respectively, using the results from the works of Hausel and Thaddeus, among other tools.
Comment: 19 pages, v3 updated version, corrected typos; to appear in Revista Colombiana de Matem\'aticas
Databáze: OpenAIRE