Two properties of endomorphisms of Weyl algebras

TY - UNPB

T1 - Two properties of endomorphisms of Weyl algebras

AU - Lauritzen, Niels

AU - Thomsen, Jesper Funch

PY - 2015/8/11

Y1 - 2015/8/11

N2 - We show that endomorphisms of Weyl algebras over fields of characteristic zero are flat and that birational endomorphisms are automorphisms by reducing to positive characteristic. We also give examples showing that endomorphisms of Weyl algebras are not in general flat over fields of positive characteristic.

AB - We show that endomorphisms of Weyl algebras over fields of characteristic zero are flat and that birational endomorphisms are automorphisms by reducing to positive characteristic. We also give examples showing that endomorphisms of Weyl algebras are not in general flat over fields of positive characteristic.

UR - http://arxiv.org/abs/1508.02499

M3 - Working paper

BT - Two properties of endomorphisms of Weyl algebras

PB - arxiv.org

ER -