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Alicia Santiago-Santos 《Topology and its Applications》2011,158(16):2125-2139
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Umed H. Karimov 《Topology and its Applications》2006,153(10):1614-1621
The main result of this paper is the following theorem, related to the missing link in the proof of the topological version of the classical result of Helly: Let be any family of simply connected compact subsets of R2 such that for every i,j∈{0,1,2} the intersections Xi∩Xj are path connected and is nonempty. Then for every two points in the intersection there exists a cell-like compactum connecting these two points, in particular the intersection is a connected set. 相似文献
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Feng Tan 《Topology and its Applications》2011,158(3):533-541
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