GRUNDLAGEN Der ELEMENTARGEOMETRIE in Gruppenalgebraischer Behnadlung.
Leipzig / Berlin: B. G. Teubner, 1933. 1st Edition. viii, 88, [2] pp. Illustrated. 8vo. Original publisher's printed green cloth. Very Good. Item #45747
"Gerhard Thomsen was a German mathematician, probably best known for his work in various branches of geometry. [While] in Hamburg, Thomsen assisted Wilhelm Blaschke to apply Felix Klein's Erlangen Program on differential geometry. He also edited and organized Blaschke's lectures on differential geometry for publication as a series of three books. Thomsen wrote 22 papers on various topics in geometry and furthermore a few papers on theoretical physics as well. .... Thomsen also wrote a book on the foundations of elementary geometry [here offered]. In elementary geometry, Thomsen's theorem is named after him." [Wiki].
Price: $125.00