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Sylvester-resultants for bivariate polynomials with planar newton polygons

Published: 04 July 2004 Publication History

Abstract

We derive necessary and sufficient conditions which guarantee that a multiplying set of monomials generates exactly a Sylvester A-resultant for three bivariate polynomials with a given planar Newton polygon. We show that valid multiplying sets come in complementary pairs, and any two complementary pairs of multiplying sets can be used to index the rows and columns of a pure Bezoutian A-resultant for the same Newton polygon.The necessary and sufficient conditions include a set of Diophantine equations that can be solved to generate the multiplying sets and therefore the corresponding Sylvester $A$-resultants. Examples relevant to Geometric Modeling are provided, including a new family of hexagonal examples for which Sylvester formulas were not previously known. These examples not only flesh out the theory, but also demonstrate that none of the conditions are superfluous and that all the conditions are mutually independent. The proof of the main theorem makes use of tools from algebraic geometry, including sheaf cohomology on toric varieties and Weyman's resultant complex.

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  • (2019)Matrix formulæ for resultants and discriminants of bivariate tensor-product polynomialsJournal of Symbolic Computation10.1016/j.jsc.2019.07.007Online publication date: Jul-2019
  • (2017)Resultants and Discriminants for Bivariate Tensor-Product PolynomialsProceedings of the 2017 ACM International Symposium on Symbolic and Algebraic Computation10.1145/3087604.3087646(309-316)Online publication date: 23-Jul-2017
  • (2011)Single-lifting Macaulay-type formulae of generalized unmixed sparse resultantsJournal of Symbolic Computation10.1016/j.jsc.2011.02.00246:8(919-942)Online publication date: 1-Aug-2011
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    cover image ACM Conferences
    ISSAC '04: Proceedings of the 2004 international symposium on Symbolic and algebraic computation
    July 2004
    334 pages
    ISBN:158113827X
    DOI:10.1145/1005285
    • General Chair:
    • Josef Schicho
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 04 July 2004

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    View all
    • (2019)Matrix formulæ for resultants and discriminants of bivariate tensor-product polynomialsJournal of Symbolic Computation10.1016/j.jsc.2019.07.007Online publication date: Jul-2019
    • (2017)Resultants and Discriminants for Bivariate Tensor-Product PolynomialsProceedings of the 2017 ACM International Symposium on Symbolic and Algebraic Computation10.1145/3087604.3087646(309-316)Online publication date: 23-Jul-2017
    • (2011)Single-lifting Macaulay-type formulae of generalized unmixed sparse resultantsJournal of Symbolic Computation10.1016/j.jsc.2011.02.00246:8(919-942)Online publication date: 1-Aug-2011
    • (2008)Expressing a fraction of two determinants as a determinantProceedings of the twenty-first international symposium on Symbolic and algebraic computation10.1145/1390768.1390790(141-146)Online publication date: 20-Jul-2008

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