| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9516828 | Topology and its Applications | 2005 | 7 Pages |
Abstract
Let Zn=([0,1]nÃ(0,1])âª(â([0,1]n)Ã{0}). De Groot asked: Is cmpZn⩾n for every n? It is known that the answer is yes for n=1 and 2. V.A. Chatyrko and Y. Hattori [Fund. Math. 172 (2002) 107-115] showed that the answer is no for n⩾5. It is shown that the answer is also no for n=4. The question is unresolved for n=3.
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
Authors
Togo Nishiura,