作者：Wilhelm Klingenberg 日期：2021-03-03 12:09:26
UponDavidHoffmanfellthedifficulttaskoftransformingthetightlyconstructedGermantextintoonewhichwouldmeshwellwiththemorerelaxedformatoftheGraduateTextsinMathematicsseries.Therearesomeelaborationsandseveralnewfigureshavebeenadded.ItrustthatthemeritsoftheGermaneditionhavesurvivedwhereasatthesametimetheeffortsofDavidhelpedtoelucidatethegeneralconceptionoftheCoursewherewetriedtoputGeometrybeforeFormalismwithoutgivingupmathematicalrigour.