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   Uniformly Continuous 1-1 Functions on Ordered Fields Not Mapping Interior To Interior  
   
نویسنده Moniri Mojtaba ,Eivazloo Jafar S.
منبع Iranian Journal Of Numerical Analysis And Optimization - 2008 - دوره : 1 - شماره : 1 - صفحه:59 -65
چکیده    In an earlier work we showed that for ordered fields f not isomorphic tothe reals r, there are continuous 1-1 functions on [0, 1]f which map some interior point to a boundary point of the image (and so are not open). here we show that over closed bounded intervals in the rationals q as well as in all non-archimedean ordered fields of countable cofinality, there are uniformly continuous 1-1 functions not mapping interior to interior. in particular, the minimal non-archimedean ordered field q(x), as well as ordered laurent series fields with coefficients in an ordered field accommodate such pathological functions.
کلیدواژه Ordered Field ,Gap ,Monotone Complete ,Open Map
آدرس Tarbiat Modares University, Department Of Mathematics, ایران, Tarbiat Modares University, Department Of Mathematics, ایران
پست الکترونیکی mojmon@ipm.ir
 
     
   
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