The Galois structure of the trace form in extensions of odd prime degree

@inproceedings{Erez1988TheGS,
  title={The Galois structure of the trace form in extensions of odd prime degree},
  author={Boas Erez},
  year={1988}
}
In a Galois extension of odd prime degree K/Q we get a Galois module A on which the trace form is unimodular by considering the square root of the inverse different D−K/Q. Let G = Gal(K/Q. I show that there is an equivariant isometry between A and the group ring ZG both equipped with their respective trace forms. 

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