Seminar
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Location: | SLMath: Eisenbud Auditorium, Online/Virtual |
Keywords and Mathematics Subject Classification (MSC)
Primary Mathematics Subject Classification
No Primary AMS MSC
Secondary Mathematics Subject Classification
No Secondary AMS MSC
Curve-Excluding Fields
Consider the class of fields with Char$(K)=0$ such that $x^4+y^4=1$ has only 4 solutions in $K$. We show that it has a model companion, curve-excluding fields. Curve-excluding fields provide examples to various questions. Model-theoretically, they are model complete and algebraically bounded. Field-theoretically, they can be non-large when we vary the curve of choice. Â Moreover, there exist decidable curve-excluding fields. This is based on joint work with Will Johnson and Erik Walsberg.
Curve-Excluding Fields
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