Peter Manfred Gruber (28 August 1941, Klagenfurt – 7 March 2017, Vienna) was an Austrian mathematician working in geometric number theory[1] as well as in convex and discrete geometry.
[2][3] Gruber obtained his PhD at the University of Vienna in 1966, under the supervision of Nikolaus Hofreiter.
[4] From 1971, he was Professor at the University of Linz, and from 1976, at the TU Wien.
[1] He was a member of the Austrian Academy of Sciences,[1][5] a foreign member of the Russian Academy of Sciences,[1][6] and a corresponding member of the Bavarian Academy of Sciences and Humanities.
[1][7] His past doctoral students include Monika Ludwig.