But his interest was mainly directed towards fundamental problems of mathematics: the foundations of geometry and non-euclidean geometry . Eiges had a proper appreciation of his pupil and exerted a decisive influence on his choice of a career in mathematics.
Ngunit ang kanyang mga interes ay unang-una Directed patungo sa pangunahing problema ng matematika: ang pundasyon ng geometry at non-euclidean geometry. Eiges nagkaroon ng tamang appreciation ng kanyang mga mag-aaral at exerted ng isang mapag-aalinlanganan impluwensiya sa kanyang pagpili ng isang karera sa matematika.