李秋坤臺灣大學：數學研究所羅盛吉Luo, Sheng-jiSheng-jiLuo2007-11-282018-06-282007-11-282018-06-282007http://ntur.lib.ntu.edu.tw//handle/246246/59420　　1957年Posner所發表的兩個關於導算型（derivation）的定理，本文將之推廣到斜導算型（skew-derivation）上。In this thesis we extend Posner's two well-known theorems on derivations to the case of skew derivations.1.Abstract………………………………………………………………1 2.Introduction and results…………………………………………2 3.Preliminaries……………………………………………………… 4 4.Posner’s First Theorem………………………………………… 6 5.Posner’s Second Theorem…………………………………………8 6.References………………………………………………………… 10263345 bytesapplication/pdfen-US斜導算型自同構質環PISkew derivationautomorphismprime ringpolynomial identy(PI)thesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/59420/1/ntu-96-R91221010-1.pdf