黃文達2014-10-272014-10-271990-06-??http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/17451本文主要目的在於造出一條平面上的弧,及定義在此弧上的一個擬等拒變換,而此擬等拒變換無法經由此弧上的任何一點延拓到包含該點的任何鄰域上。We shall construct, for each L > 1, an are β and an L-quasiisometry f in β such that f has no quasiisometric extension to any neighborhood of any point on β.等距延拓An ARC Which Has No Quasiisometric Extension to Anywhere無處可擬等距延拓的弧