On intersections of compacta in Euclidean space: the metastable case

On intersections of compacta in Euclidean space: the metastable case
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欧几里得空间中紧致相交:亚稳态情况

DOI:
10.21099/tkbjm/1496162280
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发表时间:
1993
影响因子:
0.7
通讯作者:
E. V. Ščepin
E. V. Ščepin
中科院分区:
--
文献类型:
--
作者:
A. N. Dranišnikov;Dušan D. Repovš;E. V. Ščepin

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我们证明以下定理:设 /: X^Rn 和 g: Y^Rn 是紧致 X 和 Y 到欧几里得空间 Rn, n^5 的任意映射。假设dim (XxY)<n并且2dimZ+dimF<2n―1。那么对于每个 s>0 都存在映射 f'.X-^R71 和 gf:Y-*Rn 使得 d(f, f')<e, d(g, g')<e 和 f\X)ng'(Y) =0。
We prove the following theorem: Let /: X^Rn and g: Y^Rn be any maps of compacta X and Y into the Euclideannspace Rn, n^5. Suppose that dim (XxY)<n and that 2dimZ+ dimF<2n―1. Then for every s>0 there existmaps f'.X-^R71 and gf:Y-*Rn such that d(f, f')<e, d(g, g')<e and f\X)ng'(Y) =0.