A SIMPLY CONNECTED UNIVERSAL FIBRATION WITH UNIQUE PATH LIFTING OVER A PEANO CONTINUUM WITH NON-SIMPLY CONNECTED UNIVERSAL COVERING SPACE

被引:0
作者
Brazas, Jeremy [1 ]
Fischer, Hanspeter [2 ]
机构
[1] West Chester Univ Penn, Dept Math, W Chester, PA 19383 USA
[2] Ball State Univ, Dept Math Sci, Muncie, IN 47306 USA
关键词
FUNDAMENTAL-GROUPS;
D O I
10.1090/proc/16942
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We present a 2-dimensional Peano continuum T subset of R-3 with the following properties: (1) There is a universal covering projection q : (T) over bar -> T with uncountable fundamental group pi(1) ((T) over bar); (2) For every 1 not equal [(alpha) over bar] is an element of pi(1) (T, *), there is a covering projection r : (E, e ) -> ((T) over bar, *) such that [(alpha) over bar] is not an element of r(#)pi(1) (E, e ); (3) There is no universal covering projection r : E -> (T) over bar ; (4) The universal object p : (T) over tilde -> T in the category of fibrations with unique path lifting (and path-connected total space) over T has trivial fundamental group pi(1) ((T) over tilde) = 1; (5) p : (T) over tilde -> T is not a path component of an inverse limit of covering projections over T.
引用
收藏
页码:371 / 379
页数:9
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