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| Main Author: | |
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| Format: | Preprint |
| Published: |
2015
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/1506.04162 |
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| _version_ | 1866912146772721664 |
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| author | Wagner, Frank Olaf |
| author_facet | Wagner, Frank Olaf |
| contents | A bounded automorphism of a field or a group with trivial approximate centre is definable. In an expansion of a field by a Pfaffian family F of additive endomorphisms such that algebraic closure in the expansion coincides with relative field-algebraic closure of the F-substructure generated, a bounded endomorphism, possibly composed with a power of the Frobenius, is a composition of endomorphisms associated with F. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1506_04162 |
| institution | arXiv |
| publishDate | 2015 |
| record_format | arxiv |
| spellingShingle | Bounded morphisms Wagner, Frank Olaf Logic Commutative Algebra A bounded automorphism of a field or a group with trivial approximate centre is definable. In an expansion of a field by a Pfaffian family F of additive endomorphisms such that algebraic closure in the expansion coincides with relative field-algebraic closure of the F-substructure generated, a bounded endomorphism, possibly composed with a power of the Frobenius, is a composition of endomorphisms associated with F. |
| title | Bounded morphisms |
| topic | Logic Commutative Algebra |
| url | https://arxiv.org/abs/1506.04162 |