Elon Lindenstrauss was awarded the 2010 Fields Medal for his results on measure rigidity in ergodic theory, and their applications to number theory. The web page of the ICM 2010 contains the following brief description of Elon Lindenstrauss’ achievements: Lindenstrauss has made far-reaching advances in ergodic theory, the study of measure preserving transformations. His work on a conjecture of ...

Vorlesungen iiber Zahlentheorie. By Edmund Landau. Volume I: Aus der elementaren unà additiven Zahlentheorie. xii+360 pp. Volume II: Aus der analytischen und geometrischen Zahlentheorie. vii+308 pp. Volume III : Aus der algebraischen Zahlentheorie und iiber die Fermatsche Vermutung. vii+341 pp. Leipzig, S. Hirzel, 1927. These three excellently printed and arranged volumes form an addition of th...