activity
20002024
most citedOn totally geodesic submanifolds in the Jacobian locus

31 citations · 49 across the 17 of their papers we have counts for

collaborators

26 papers

math.AG2024

Theta functions and projective structures

Indranil Biswas, Alessandro Ghigi, Luca Vai

Given a compact Riemann surface , we consider the line, in the space of sections of on , orthogonal to all the sections that vanish at the origin. This line produce…

math.AG2023

Theta bundle, Quillen connection and the Hodge theoretic projective structure

Indranil Biswas, Alessandro Ghigi, Carolina Tamborini

There are two canonical projective structures on any compact Riemann surface of genus at least two: one coming from the uniformization theorem, and the other from Hodge theory. The…

math.AG2022★ 4 cited

Topological types of actions on curves

Diego Conti, Alessandro Ghigi, Roberto Pignatelli

We describe an algorithm that constructs a list of all topological types of holomorphic actions of a finite group on a compact Riemann surface of genus at least with…

math.AG2022★ 1 cited

A topological construction of families of Galois covers of the line

Alessandro Ghigi, Carolina Tamborini

We describe a new construction of families of Galois coverings of the line using basic properties of configuration spaces, covering theory, and the Grauert-Remmert Extension Theore…

math.AG2021

Bergman kernel and period map for curves

Alessandro Ghigi, Carolina Tamborini

As for any symmetric space the tangent space to Siegel upper-half space is endowed with an operation coming from the Lie bracket on the Lie algebra. We consider the pull-back of th…

math.AG2021★ 2 cited

Some evidence for the Coleman-Oort conjecture

Diego Conti, Alessandro Ghigi, Roberto Pignatelli

The Coleman-Oort conjecture says that for large there are no positive-dimensional Shimura subvarieties of generically contained in the Jacobian locus. Counterexa…