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Preprint Number 2567
2567. Tobias Kaiser Semialgebraicity of the convergence domain of an algebraic power series E-mail: Submission date: 12 February 2024 Abstract: Given a power series in finitely many variables that is algebraic over the corresponding polynomial ring over a subfield of the reals, we show that its convergence domain is semialgebraic over the real closure of the subfield. This gives in particular that the convergence radius of a univariate Puiseux series that is algebraic in the above sense belongs to the real closure or is infinity. Mathematics Subject Classification: 14H05, 14P10, 14P15, 30B10, 32A05 Keywords and phrases: |
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