A discrete valuation on a field is a nontrivial function
such that
,
, and
. It is normalized if
. The associated valuation
ring is
,
and its unique maximal ideal is
.
Discrete Valuation
See also
Local Field, Maximal Ideal, Valuation, Valuation RingExplore with Wolfram|Alpha
References
Serre, J.-P. Local Fields. New York: Springer-Verlag, 1979.Cite this as:
Weisstein, Eric W. "Discrete Valuation." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/DiscreteValuation.html