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arXiv 1208.1341math.LO
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值差域与NTP2

Valued difference fields and NTP2

Artem Chernikov, Martin Hils

摘要:

我们证明了作用在特征为0的代数闭值域上的非标准弗罗贝尼乌斯自同构的理论是NTP 2。更一般地说,在收缩以及在等距的情况下,我们证明了一个sigma-henselian值的差域的equicharteristic 0是NTP 2,提供的剩余差域和值组(作为一个有序的差组)是NTP 2。

英文摘要:

We show that the theory of the non-standard Frobenius automorphism, acting on an algebraically closed valued field of equal characteristic 0, is NTP2. More generally, in the contractive as well as in the isometric case, we prove that a sigma-henselian valued difference field of equicharacteristic 0 is NTP2, provided both the residue difference field and the value group (as an ordered difference group) are NTP2.

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