The automorphisms of differential extensions of characteristic \(p\)
Nonassociative differential extensions are generalizations of associative differential extensions, either of a purely inseparable field extension \(K\) of exponent one of a field \(F\), \(F\) of characteristic \(p\), or of a central division algebra over a purely inseparable field extension of \(F\)...
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Cornell University Library, arXiv.org
13.06.2024
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| Abstract | Nonassociative differential extensions are generalizations of associative differential extensions, either of a purely inseparable field extension \(K\) of exponent one of a field \(F\), \(F\) of characteristic \(p\), or of a central division algebra over a purely inseparable field extension of \(F\). Associative differential extensions are well known central simple algebras first defined by Amitsur and Jacobson. We explicitly compute the automorphisms of nonassociative differential extensions. These are canonically obtained by restricting automorphisms of the differential polynomial ring used in the construction of the algebra. In particular, we obtain descriptions for the automorphisms of associative differential extensions of \(D\) and \(K\), which are known to be inner. |
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| AbstractList | Nonassociative differential extensions are generalizations of associative differential extensions, either of a purely inseparable field extension \(K\) of exponent one of a field \(F\), \(F\) of characteristic \(p\), or of a central division algebra over a purely inseparable field extension of \(F\). Associative differential extensions are well known central simple algebras first defined by Amitsur and Jacobson. We explicitly compute the automorphisms of nonassociative differential extensions. These are canonically obtained by restricting automorphisms of the differential polynomial ring used in the construction of the algebra. In particular, we obtain descriptions for the automorphisms of associative differential extensions of \(D\) and \(K\), which are known to be inner. |
| Author | Pumpluen, Susanne |
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| Title | The automorphisms of differential extensions of characteristic \(p\) |
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