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Grigorii Mikhailovich Fichtenholz (or Fikhtengolts) ((ロシア語:Григо́рий Миха́йлович Фихтенго́льц)) (June 5, 1888 in Odessa – June 26 1959 in Leningrad) was a Russian mathematician working on real analysis and functional analysis. Fichtenholz was one of the founders of the Leningrad school of real analysis. He also authored a three-volume textbook 'Differential and Integral Calculus'. The books cover mathematical analysis of function of one real variable, functions of many real variables and of complex functions. Due to depth and precision of presentation of material, these books are defined as classical position in mathematical analysis. Book was translated, among others, into German, Chinese, and Persian however translation to English language has not been done still. Fichtenholz's books about analysis are widely used in Eastern European and Chinese universities due to its exceptionality of detailed and well-ordered presentation of material about mathematical analysis. Due to unknown reasons, these books do not have the same fame in universities in other areas of the world. Leonid Kantorovich and Isidor Natanson were among his students. ==References== * * * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Grigorii Fichtenholz」の詳細全文を読む スポンサード リンク
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