首页 | 本学科首页   官方微博 | 高级检索  
     


Collections of paths and rays in the plane which fix its topology
Authors:Fredric D. Ancel
Affiliation:Department of Mathematics, University of Oklahoma, Norman, OK 73019, USA
Abstract:
A collection F of proper maps into a locally compact Hausdorff space X fixes the topology of X if the only locally compact Hausdorff topology on X which makes each element of F continuous and proper is the given topology. In I2=[-1, 1]×[-1, 1], neither the collection of analytic paths nor the collection of regular twice differentiable paths fixes the topology. However, in I2, both the collection of C arcs and the collection of regular C1 arcs fix the topology. In I2=[?1,1]×[?1,1], the collection of polynomial rays together with any collection of paths does not fix the topology. However, in R2, the collection of regular injective entire rays together with either the collection of C arcs or the collection of regular C1 arcs fixes the topology.
Keywords:Primary 54A10  Secondary 26B99, 30D99
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号