Galois scaffolds and Galois module structure in extensions of characteristic $p$ local fields of degree $p^2$

Details Galois scaffolds and Galois module structure in extensions of characteristic $p$ local fields of degree $p^2$ Galois scaffolds and Galois module structure in extensions of characteristic $p$ local fields of degree $p^2$

2011-06-17

arxiv.org/abs/1106.3577v1

Mathematics

Number Theory

Scientific paper

A Galois scaffold, in a Galois extension of local fields with perfect residue fields, is an adaptation of the normal basis to the valuation of the extension field, and thus can be applied to answer questions of Galois module structure. Here we give a sufficient condition for a Galois scaffold to exist in fully ramified Galois extensions of degree $p^2$ of characteristic $p$ local fields. This condition becomes necessary when we restrict to $p=3$. For extensions $L/K$ of degree $p^2$ that satisfy this condition, we determine the Galois module structure of the ring of integers by finding necessary and sufficient conditions for the ring of integers of $L$ to be free over its associated order in $K[Gal(L/K)]$.

Affiliated with

Also associated with

No associations

Rating

Galois scaffolds and Galois module structure in extensions of characteristic $p$ local fields of degree $p^2$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Galois scaffolds and Galois module structure in extensions of characteristic $p$ local fields of degree $p^2$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galois scaffolds and Galois module structure in extensions of characteristic $p$ local fields of degree $p^2$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-465194