Higgs bundles and surface group representations in the real symplectic group

O García-Prada, PB Gothen, IMI Riera - Journal of Topology, 2013 - academic.oup.com
In this paper, we study the moduli space of representations of a surface group (that is, the
fundamental group of a closed oriented surface) in the real symplectic group Sp (2 n, ℝ). The …

Connectedness of Higgs bundle moduli for complex reductive Lie groups

O García-Prada, A Oliveira - arxiv preprint arxiv:1408.4778, 2014 - arxiv.org
We carry an intrinsic approach to the study of the connectedness of the moduli space
$\mathcal {M} _G $ of $ G $-Higgs bundles, over a compact Riemann surface, when $ G $ is …

Representations of surface groups in the projective general linear group

AG Oliveira - International Journal of Mathematics, 2011 - World Scientific
Given a closed, oriented surface X of genus g≥ 2, and a semisimple Lie group G, let be the
moduli space of reductive representations of π1X in G. We determine the number of …

Rank two quadratic pairs and surface group representations

PB Gothen, AG Oliveira - Geometriae Dedicata, 2012 - Springer
Let X be a compact Riemann surface. A quadratic pair on X consists of a holomorphic vector
bundle with a quadratic form which takes values in a fixed line bundle. We show that the …

[PDF][PDF] Connectivity of higgs bundle moduli for complex reductive Lie groups

O GARCÍA-PRADA, A Oliveira - arxiv preprint arxiv:1408.4778, 2014 - researchgate.net
We carry an intrinsic approach to the study of the connectivity of the moduli space MG of G-
Higgs bundles, over a compact Riemann surface, when G is a complex reductive (not …

Maximal Higgs bundles for adjoint forms via Cayley correspondence

A Oliveira, O García-Prada - 2017 - repositorio-aberto.up.pt
For a fixed compact Riemann surface X, of genus at least 2, we count the number of
connected components of the moduli space of maximal Higgs bundles over X for the …

[PDF][PDF] MAXIMAL HIGGS BUNDLES FOR ADJOINT FORMS VIA CAYLEY

O GARCÍA-PRADA, A OLIVEIRA - arxiv preprint arxiv:1612.06621, 2016 - researchgate.net
arxiv:1612.06621v1 [math.DG] 20 Dec 2016 Page 1 arxiv:1612.06621v1 [math.DG] 20 Dec
2016 MAXIMAL HIGGS BUNDLES FOR ADJOINT FORMS VIA CAYLEY CORRESPONDENCE …

Maximal Higgs bundles for adjoint forms via Cayley correspondence

O Garcia-Prada, A Oliveira - Geometriae Dedicata, 2017 - Springer
For a fixed compact Riemann surface X, of genus at least 2, we count the number of
connected components of the moduli space of maximal Higgs bundles over X for the …

[PDF][PDF] Connectedness of Higgs bundle moduli for complex reductive Lie groups

A Oliveira, O García-Prada - 2016 - repositorio-aberto.up.pt
We carry an intrinsic approach to the study of the connectedness of the moduli space MG of
G-Higgs bundles, over a compact Riemann surface, when G is a complex reductive (not …

[CITATION][C] centro de matemática cm–utad

AG Oliveira - 2008