Indecomposability and cyclicity in the p-primary part of the Brauer group of a p-adic curve.

Autor: Tengan, Eduardo
Předmět:
Zdroj: Communications in Algebra; 2020, Vol. 48 Issue 6, p2591-2607, 17p
Abstrakt: We obtain two results about the p-primary part of the Brauer group of a p-adic curve X. First, assuming enough roots of unity and that X has good reduction, we construct indecomposable K(X)-division algebras of period p2 and index p3. Second, for an elliptic curve X with split multiplicative reduction, we show that all order p elements of Br (X) are Z / p -cyclic, and that if moreover X is defined over Q p , that all order pr elements of Br (X) are Z / p r -cyclic for r ≥ 1. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index