Journal de Th´
eorie des Nombres
de Bordeaux
16
(2004), 373–375
A monogenic Hasse-Arf theorem
par
James BORGER
R´esum´e. On ´etend le th´eor`eme de Hasse–Arf de la classe des extensions r´esiduellement s´eparables des anneaux de valuation discr`ete complets `a la classe des extensions monog`enes.
Abstract. I extend the Hasse–Arf theorem from residually sepa-rable extensions of complete discrete valuation rings to monogenic extensions.
JamesBorger
The University of Chicago Department of Mathematics 5734 University Avenue
Chicago, Illinois 60637-1546, USA