P-CONVEX;
FOCAL POINT;
PRINCIPAL NORMAL CURVATURES;
INDEX;
D O I:
10.1016/0166-8641(92)90132-J
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
Compact n-manifolds with C2-boundary in Euclidean n-space are characterized by means of the topological behavior of their intersections with regular balls. Morse theory is used in the proof.