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On Polynomial Ideals And Overconvergence In Tate Algebras

Abstract : In this paper, we study ideals spanned by polynomials or overconvergent series in a Tate algebra. With state-of-the-art algorithms for computing Tate Gröbner bases, even if the input is polynomials, the size of the output grows with the required precision, both in terms of the size of the coefficients and the size of the support of the series. We prove that ideals which are spanned by polynomials admit a Tate Gröbner basis made of polynomials, and we propose an algorithm, leveraging Mora's weak normal form algorithm, for computing it. As a result, the size of the output of this algorithm grows linearly with the precision. Following the same ideas, we propose an algorithm which computes an overconvergent basis for an ideal spanned by overconvergent series. Finally, we prove the existence of a universal analytic Gröbner basis for polynomial ideals in Tate algebras, compatible with all convergence radii.
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https://hal.archives-ouvertes.fr/hal-03574662
Contributor : Thibaut Verron Connect in order to contact the contributor
Submitted on : Tuesday, February 15, 2022 - 11:29:20 AM
Last modification on : Wednesday, February 16, 2022 - 3:46:41 AM

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  • HAL Id : hal-03574662, version 1
  • ARXIV : 2202.07509

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Xavier Caruso, Tristan Vaccon, Thibaut Verron. On Polynomial Ideals And Overconvergence In Tate Algebras. 2022. ⟨hal-03574662⟩

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