On the size of the genus of a division algebra

Autor: Chernousov, Vladimir I., Rapinchuk, Andrei S., Rapinchuk, Igor A.
Rok vydání: 2015
Předmět:
Druh dokumentu: Working Paper
Popis: Let D be a central division algebra of degree n over a field K. One defines the genus gen(D) of D as the set of classes [D'] in the Brauer group Br(K) of K represented by central division algebras D' of degree n over K having the same maximal subfields as D. We prove that if the field K is finitely generated and n is prime to its characteristic, then gen(D) is finite, and give explicit estimations of its size in certain situations.
Databáze: arXiv