On products of polynomials II
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- by David Masser and Andrew Wise;
- Proc. Amer. Math. Soc. 151 (2023), 3743-3750
- DOI: https://doi.org/10.1090/proc/16428
- Published electronically: May 25, 2023
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Abstract:
We show that if two complex quadratic polynomials in a single variable each have a coefficient 1, then their product must have a coefficient with absolute value at least $(\sqrt {13}-3)/2$. This is best possible. There is a more natural and classical formulation using heights. We also present some speculations about higher degree involving Littlewood polynomials.References
- David W. Boyd, Two sharp inequalities for the norm of a factor of a polynomial, Mathematika 39 (1992), no. 2, 341–349. MR 1203290, DOI 10.1112/S0025579300015072
- David Masser, Auxiliary polynomials in number theory, Cambridge Tracts in Mathematics, vol. 207, Cambridge University Press, Cambridge, 2016. MR 3497545, DOI 10.1017/CBO9781107448018
- D. W. Masser and J. Wolbert, On products of polynomials, Proc. Amer. Math. Soc. 117 (1993), no. 3, 593–599. MR 1111220, DOI 10.1090/S0002-9939-1993-1111220-1
- A. Schinzel, Polynomials with special regard to reducibility, Encyclopedia of Mathematics and its Applications, vol. 77, Cambridge University Press, Cambridge, 2000. With an appendix by Umberto Zannier. MR 1770638, DOI 10.1017/CBO9780511542916
Bibliographic Information
- David Masser
- Affiliation: Departement Mathematik und Informatik, Universität Basel, Spiegelgasse 1, 4051 Basel, Switzerland
- MR Author ID: 121080
- Email: David.Masser@unibas.ch
- Andrew Wise
- Affiliation: c/o Trinity College, Cambridge CB2 1TQ, England
- Email: andrew.wise@cantab.net
- Received by editor(s): June 7, 2022
- Received by editor(s) in revised form: September 18, 2022, January 9, 2023, and January 27, 2023
- Published electronically: May 25, 2023
- Communicated by: Rachel Pries
- © Copyright 2023 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 151 (2023), 3743-3750
- MSC (2020): Primary 12D99
- DOI: https://doi.org/10.1090/proc/16428
- MathSciNet review: 4607620