On multiple points of smooth immersions
On multiple points of smooth immersions
复制标题
多点平滑沉浸
DOI:
10.1007/bf02566703
复制
发表时间:
1980
期刊:
影响因子:
--
通讯作者:
F. Ronga
中科院分区:
文献类型:
--
作者:
F. Ronga
Let f: V"--~ W"~'be a smooth immersion, where V" and W" § are smooth manifolds of dimension n and n+ r respectively; we denote by V (k~ the k-fold product of V,/tv (k)={(xl..... Xk) CV (k~ I3i# j with xi= xi},~ iw (k)={(y..... y) c W (k~}. We shall say that f is regular if fk: V (k~ W (k~ is transversal to 8w (k) outside/iv (k). This means that if f (x~)..... f (xk)= y, X~ X i, the vector spaces Im (d/x,)..... Im (df,~) are in general position in TWo. The following theorem has been proved by Ralph J. Herbert in his thesis [3]: