INVARIANT ARCS, WHITNEY LEVELS, AND KELLEY CONTINUA

被引：0
|
作者：
VANDEVEL, M
机构：
来源：
TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY | 1991年 / 326卷 / 02期
关键词：
ABSOLUTE RETRACT; APPROXIMATING COSELECTION; ARC; CONTINUOUS SELECTION; CONVEX SET; KELLEY CONTINUUM; LAWSON SEMILATTICE; WHITNEY MAP;
D O I：
暂无
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
As an application of convexity in spaces of arcs, three results of a somewhat different nature have been obtained. The first one gives some simple conditions under which an arc of a semilattice is mapped back into itself by an order-preserving function. The second result states that certain Whitney levels are absolute retracts. Finally, Kelley continua are characterized by what we call approximating coselections.
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页码：749 / 771
页数：23
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