Geodesic
Elementary abelian conductor
Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 26, Tome 423 (2014), pp. 126-131

Voir la notice de l'article provenant de la source Math-Net.Ru

The paper is devoted to ramification theory for a class of complete discrete valuation fields that includes $2$-dimensional local fields of prime characteristic $p$. It is proved that any finite extension of such a field can be modified into an extension with zero ramification depth by means of an infinite elementary abelian base change. 
@article{ZNSL_2014_423_a6,
     author = {I. B. Zhukov},
     title = {Elementary abelian conductor},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {126--131},
     publisher = {mathdoc},
     volume = {423},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2014_423_a6/}
}
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I. B. Zhukov. Elementary abelian conductor. Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 26, Tome 423 (2014), pp. 126-131. http://geodesic.mathdoc.fr/item/ZNSL_2014_423_a6/