首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Rigid continua and transfinite inductive dimension
Authors:Michael G Charalambous  Jerzy Krzempek
Institution:a Department of Mathematics, University of the Aegean, 83 200, Karlovassi, Samos, Greece
b Institute of Mathematics, Silesian University of Technology, Kaszubska 23, 44-100, Gliwice, Poland
Abstract:We introduce a general method of resolving first countable, compact spaces that allows accurate estimate of inductive dimensions. We apply this method to construct, inter alia, for each ordinal number α>1 of cardinality ?c, a rigid, first countable, non-metrizable continuum Sα with View the MathML source. Sα is the increment in some compactification of 0,1) and admits a fully closed, ring-like map onto a metric continuum. Moreover, every subcontinuum of Sα is separable. Additionally, Sα can be constructed so as to be: (1) a hereditarily indecomposable Anderson-Choquet continuum with covering dimension a given natural number n, provided α>n, (2) a hereditarily decomposable and chainable weak Cook continuum, (3) a hereditarily decomposable and chainable Cook continuum, provided α is countable, (4) a hereditarily indecomposable Cook continuum with covering dimension one, or (5) a Cook continuum with covering dimension two, provided α>2.We also produce a chainable and hereditarily decomposable space Sω(c+) with View the MathML source, View the MathML source, trind0Sω(c+) and trInd0Sω(c+) all equal to ω(c+), the first ordinal of cardinality c+.
Keywords:54F15  54F45
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