摘要
Seifert's conjecture has been solved and other interesting problems in difFerential topology have been discussed. Certain properties of vector fields on S2 and 53 have been achieved while one treats S2 and S3 as submanifolds of R3 and R4 respectively. The difFerential structure we consider here is the usual one in mathematical analysis.
Seifert's conjecture has been solved and other interesting problems in difFerential topology have been discussed. Certain properties of vector fields on S2 and 53 have been achieved while one treats S2 and S3 as submanifolds of R3 and R4 respectively. The difFerential structure we consider here is the usual one in mathematical analysis.
