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math.AG2026

Generic vector fields on isolated complex hypersurface germs

Diogo da Silva Machado, Jose Seade

We study holomorphic vector fields on isolated hypersurface singularities and derive global obstructions to the existence of holomorphic vector fields on compact singular varieties…

math.AG2026

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.AG2025

Bounds and formulas for residues of singular holomorphic foliations and applications

Diogo da Silva Machado

We consider one dimensional holomorphic foliations with isolated singularities that leave invariant a local complete intersection. We establish explicit formulas for the total GSV…

math.AG2025

Formulas for Residues of Type Camacho-Sad and Applications

Diogo Da Silva Machado

In this paper, we provide formulas for the sum of residues of type Camacho-Sad of a holomorphic foliation with respect to an invariant analytic subvariety. As application, in conte…

math.AG2025

The Schwartz index and the residue of logarithmic foliations along a hypersurface with isolated singularities

Diogo Da Silva Machado

Given a compact complex manifold , we prove a Baum-Bott type formula for one-dimensional holomorphic foliations on that are logarithmic along a hypersurface with isolated si…

math.AG2024

Global residue formula for logarithmic indices of foliations

Maurício Corrêa, Diogo da Silva Machado

We prove a global residual formula in terms of logarithmic indices for one-dimensional holomorphic foliations, with isolated singularities, and logarithmic along normal crossing di…