B. Lima-Pereira

activity

20212024

collaborators

3 papers

math.AG2024

The Bruce-Roberts Numbers of 1-Forms on an ICIS

Bárbara K. Lima-Pereira, Juan José Nuño-Ballesteros, Bruna Oréfice-Okamoto +1

We relate the Bruce-Roberts numbers of a 1-form with respect to an ICIS to other invariants as the GSV-index, Tjurina and Milnor numbers.

math.AG2022

The Bruce-Roberts Numbers of a Function on an ICIS

Bárbara K. Lima-Pereira, Juan José Nuño-Ballesteros, Bruna Oréfice-Okamoto +1

We give formulas for the Bruce-Roberts number $μ_{B R} (f, X)$ and its relative version $μ_{B R}^{-} (f, X)$ of a function $f$ with respect to an ICIS $(X, 0)$ . We show that $μ_{BR}^{-}(f…

math.AG2021

The relative Bruce-Roberts number of a function on a hypersurface

Barbara K. Lima-Pereira, Juan Jose Nuno-Ballesteros, Bruna Orefice-Okamoto +1

We consider the relative Bruce-Roberts number $μ_{B R}^{-} (f, X)$ of a function on an isolated hypersurface singularity $(X, 0)$ . We show that $μ_{B R}^{-} (f, X)$ is equal to the sum of…