Opened 6 years ago

Closed 5 years ago

## #23166 closed defect (fixed)

# Conversion from a Function Field to its underlying Polynomial Ring

Reported by: | Julian Rüth | Owned by: | |
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Priority: | major | Milestone: | sage-8.0 |

Component: | commutative algebra | Keywords: | sd86.5 |

Cc: | Merged in: | ||

Authors: | David Roe | Reviewers: | Julian Rüth |

Report Upstream: | N/A | Work issues: | |

Branch: | 3d74661 (Commits, GitHub, GitLab) | Commit: | 3d74661ce4e1bc9cdb1abeb248f884ff5690a635 |

Dependencies: | Stopgaps: |

### Description (last modified by )

sage: K.<x> = FunctionField(QQ) sage: K._ring(x) Traceback: ... ValueError: only constants can be converted into the constant base field but x is not a constant

### Change History (6)

### comment:1 Changed 6 years ago by

Description: | modified (diff) |
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### comment:2 Changed 6 years ago by

Branch: | → u/roed/conversion_from_a_function_field_to_its_underlying_polynomial_ring |
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### comment:3 Changed 6 years ago by

Commit: | → 3d74661ce4e1bc9cdb1abeb248f884ff5690a635 |
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Status: | new → needs_review |

### comment:4 Changed 6 years ago by

Reviewers: | → Julian Rüth |
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Status: | needs_review → positive_review |

### comment:5 Changed 6 years ago by

Authors: | → David Roe |
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### comment:6 Changed 5 years ago by

Branch: | u/roed/conversion_from_a_function_field_to_its_underlying_polynomial_ring → 3d74661ce4e1bc9cdb1abeb248f884ff5690a635 |
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Resolution: | → fixed |

Status: | positive_review → closed |

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New commits:

`Adding conversion from rational function fields to their ring of integers`