资讯

In the space of homegenous polynomial vector fields of degree two, those that project on Morse-Smale vector fields on $S^2$ by the Poincaré central projection form a generic subset.
In the article fine resolution of the sheaf of germs of complex projective vector fields on a locally projective complex manifold M⁴ of complex dimension n = 2 is given. The local coordinate charts on ...