Kowalewski was a member of the Saxon Academy of Sciences, the Société Mathématique de France, and socially associated with members of the Louvre Circle and Prague intellectual elite, which included Berta Fanta, Oskar Kraus, Franz Kafka, Hugo Bergmann, Philipp Frank, Albert Einstein, and Christian von Ehrenfels.
Gerhard Schröder | Gerhard Richter | Gerhard Müller (rower) | Gerhard Müller | Gerhard von Scharnhorst | Gerhard Munthe | Gerhard Zucker | Gerhard | Gerhard Markson | Gerhard Gentzen | Roberto Gerhard | Herman Gerhard Gade | Gerhard von Rad | Gerhard V of Jülich | Gerhard Riedmann | Gerhard Präsent | Gerhard Munthe (painter) | Gerhard Maria Wagner | Gerhard Ludwig Müller | Gerhard Heinrich Dieke | Gerhard Hanappi | Gerhard Frey | Gerhard Christoph von Krogh | Ken Gerhard | Heinz-Gerhard Haupt | Gerhard von Kügelgen | Gerhard von Graevenitz | Gerhard VI of Jülich, Count of Berg and Ravensberg | Gerhard VI | Gerhard Stahl |