activity
20232026
collaborators

5 papers

math.AG2026

Excess logarithmic residues for foliations by curves and applications

Alana Cavalcante, Maurício Corrêa, Fernando Lourenço +1

We introduce excess logarithmic residues for one-dimensional holomorphic foliations tangent to a divisor. They arise from the comparison between the logarithmic normal sheaf and th…

math.AG2025

Split distributions on Grassmann manifolds and smooth quadric hypersurfaces

Alana Cavalcante, Fernando Lourenço

This work is dedicated to studying holomorphic distributions on Grassmann manifolds and smooth quadric hypersurfaces. In special, we prove, under certain conditions, when the tange…

math.AG2024

Log Baum--Bott Residues for foliations by curves

Maurício Corrêa, Fernando Lourenço, Diogo Machado

We prove a Baum--Bott type residual formula for one-dimensional holomorphic foliations, and logarithmic along free divisors. More precisely, this provides a Baum--Bott theorem for…

math.DS2023

On flags of holomorphic foliations associated with singular second-order ordinary differential equations

Fernando Lourenço, Eurípedes da Silva, Fernando Reis

We consider germs of holomorphic vector fields at the origin of , with non-isolated singularities that are tangent to a holomorphic foliation of codimension one. This…

math.AG2023

A brief introduction on residue theory of holomorphic foliations

Fernando Lourenço, Fernando Reis

This is a survey paper dealing with holomorphic foliations, with emphasis on residue theory and its applications. We start recalling the definition of holomorphic foliations as a s…