The Global Property of a Class of Planar Quasi-Homogeneous Vector Fields
In this paper,by using the idea of the central projection it is shown that the geometric property of a class of planar quasi-homogeneous vector fields depends on their induced vector fields.By virtue of its induced vector field,it is proven that this vector field has 10 types of sector invariant fields with different topological classification.Furthermore,its global topological structure is discussed and it is shown that there are 17 types of different topological classification when n is even number and 32 types of different topological classification when n is odd number