林俊吉Lin, Chun-Chi崔庭緯Tsui, Ting-Wei2019-09-052019-07-172019-09-052019http://etds.lib.ntnu.edu.tw/cgi-bin/gs32/gsweb.cgi?o=dstdcdr&s=id=%22G060540006S%22.&%22.id.&http://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/101581無中文摘要In this article we try to combine the concepts: Orthogonal geodesic chord and Width function and give a sufficient condition to preserve the least number of orthogonal geodesic chords of a convex plane curve.Orthogonal geodesic chordWidth functionOrthogonal geodesic chordWidth function