Cornelius Greither (born 1956) [1] is a German mathematician specialising in Iwasawa theory and the structure of Galois modules. [2]
Greither completed his PhD in 1983 at the Ludwig-Maximilians-Universität München under the supervision of Bodo Pareigis: [3] his thesis bears the title Zum Kürzungsproblem kommutativer Algebren. [4] He habilitated in 1988 at same university, with thesis title Cyclic Galois extensions and normal bases. [4]
In 1992, Greither proved the Iwasawa main conjecture for abelian number fields in the case. [5] [6] In 1999, together with D. R. Rapogle, K. Rubin, and A. Srivastav, he proved a converse to the Hilbert–Speiser theorem. [7]
Greither was a full professor at the Universität der Bundeswehr München. He retired in 2022, [8] and he is now an emeritus. [9] [10]
Greither is on the editorial boards of the journals Archivum Mathematicum (Brno) , [2] [11] New York Journal of Mathematics , [2] [12] as well as the Journal de Théorie des Nombres de Bordeaux . [2] [13] Until 2014, he was an associate editor of Annales mathématiques du Québec. [2] [14]