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Subresultants in multiple roots: An extremal case

Authors :
Carlos D'Andrea
Marcelo Valdettaro
Teresa Krick
Alin Bostan
Agnes Szanto
Symbolic Special Functions : Fast and Certified (SPECFUN)
Inria Saclay - Ile de France
Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)
Universitat de Barcelona (UB)
Departamento de Matemática [Buenos Aires]
Facultad de Ciencias Exactas y Naturales [Buenos Aires] (FCEyN)
Universidad de Buenos Aires [Buenos Aires] (UBA)-Universidad de Buenos Aires [Buenos Aires] (UBA)
Department of Computer Science
North Carolina State University [Raleigh] (NC State)
University of North Carolina System (UNC)-University of North Carolina System (UNC)
Departamento de Computación [Buenos Aires]
Source :
CONICET Digital (CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas, instacron:CONICET, Linear Algebra and its Applications, Linear Algebra and its Applications, Elsevier, 2017, 529, pp.185-198. ⟨10.1016/j.laa.2017.04.019⟩, Linear Algebra and its Applications, 2017, 529, pp.185-198. ⟨10.1016/j.laa.2017.04.019⟩
Publication Year :
2017
Publisher :
Elsevier Science Inc, 2017.

Abstract

We provide explicit formulae for the coefficients of the order-d polynomial subresultant of (x-\alpha)^m and (x-\beta)^n with respect to the set of Bernstein polynomials \{(x-\alpha)^j(x-\beta)^{d-j}, \, 0\le j\le d\}. They are given by hypergeometric expressions arising from determinants of binomial Hankel matrices.<br />Comment: 18 pages, uses elsart. Revised version accepted for publication at Linear Algebra and its Applications

Details

Language :
English
ISSN :
00243795
Database :
OpenAIRE
Journal :
CONICET Digital (CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas, instacron:CONICET, Linear Algebra and its Applications, Linear Algebra and its Applications, Elsevier, 2017, 529, pp.185-198. ⟨10.1016/j.laa.2017.04.019⟩, Linear Algebra and its Applications, 2017, 529, pp.185-198. ⟨10.1016/j.laa.2017.04.019⟩
Accession number :
edsair.doi.dedup.....d052a9d9584e49482ac7f194e92895cf
Full Text :
https://doi.org/10.1016/j.laa.2017.04.019⟩