2 papers
math.DG2025
Positivity and representations of surface groups
Olivier Guichard, François Labourie, Anna Wienhard
In arXiv:1802.02833 Guichard and Wienhard introduced the notion of -positivity, a generalization of Lusztig's total positivity to real Lie groups that are not necessarily split…
math.GT2025
Ghost polygons, Poisson bracket and convexity
Martin Bridgeman, François Labourie
The moduli space of Anosov representations of a surface group in a semisimple group, which is an open set in the character variety, admits many more natural functions than the regu…