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An invariant for difference field extensions
Zoé Chatzidakis1 ; Ehud Hrushovski2
1 Université Paris Diderot Paris 7 – IMJ UFR de Mathématiques case 7012, site Chevaleret – 75205 Paris Cedex 13, France
2 Institute of Mathematics – Hebrew University (Giv’at Ram) – Jerusalem 91904, Israel.
Annales de la Faculté des sciences de Toulouse : Mathématiques, Série 6, Tome 21 (2012) no. 2, pp. 217-234.

Dans cet article nous introduisons un nouvel invariant pour les extensions de corps aux différences, le degré distant, et discutons ses propriétés.

In this paper we introduce a new invariant for extensions of difference fields, the distant degree, and discuss its properties.

DOI : 10.5802/afst.1334
Zoé Chatzidakis 1 ; Ehud Hrushovski 2

1 Université Paris Diderot Paris 7 – IMJ UFR de Mathématiques case 7012, site Chevaleret – 75205 Paris Cedex 13, France
2 Institute of Mathematics – Hebrew University (Giv’at Ram) – Jerusalem 91904, Israel. 
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     author = {Zo\'e Chatzidakis and Ehud Hrushovski},
     title = {An invariant for difference field extensions},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {217--234},
     publisher = {Universit\'e Paul Sabatier, Institut de Math\'ematiques},
     address = {Toulouse},
     volume = {Ser. 6, 21},
     number = {2},
     year = {2012},
     doi = {10.5802/afst.1334},
     mrnumber = {2978095},
     zbl = {1250.12005},
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Zoé Chatzidakis; Ehud Hrushovski. An invariant for difference field extensions. Annales de la Faculté des sciences de Toulouse : Mathématiques, Série 6, Tome 21 (2012) no. 2, pp. 217-234. doi : 10.5802/afst.1334. https://afst.centre-mersenne.org/articles/10.5802/afst.1334/

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