W. C. E. Silva

collaborators

3 papers

W. Costa e Silva

We prove that, if $n \geq 3$ , a singular foliation $F$ on $P^{n}$ which can be written as pull-back, where $G$ is a foliation in $P^{2}$ of degree…

W. Costa e Silva

Let $F$ be written as $f^{*} G$ , where $G$ is a foliation in $P^{2}$ with three invariant lines in general position, say $(X Y Z) = 0$ , and $f:{\…

W. Costa e Silva

Let $F$ be written as $f^{*} (G)$ , where $G$ is a $1$ -dimensional foliation on $P^{n - 1}$ and $f : P^{n} - - - > P^{n - 1}$ a non-l…