
NULL-HOMOTOPIC IMMERSIONS OF AN m-MANIFOLD IN AN (m+1)-MANIFOLD
LI BANG-HE;LIANG XIAO-TING
Journal of Systems Science and Mathematical Sciences ›› 1989, Vol. 9 ›› Issue (3) : 193-197.
NULL-HOMOTOPIC IMMERSIONS OF AN m-MANIFOLD IN AN (m+1)-MANIFOLD
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