Different exponent from ramification groups
= Different exponent from ramification groups
For a finite Galois extension of local fields,
$$
d(L/K)=\sum_{i\geq0}(|G_i|-1).
$$
= Different exponent from ramification groups
For a finite Galois extension of local fields,
$$
d(L/K)=\sum_{i\geq0}(|G_i|-1).
$$