Overdetermined Strata for Degree 5 Hyperbolic Polynomials

Vietnam Journal of Mathematics - Tập 43 Số 1 - Trang 139-150 - 2015
Hayssam, Ezzaldine1, Houssam, Khalil2, Mouhamad, Sarrage3, Mouhamad, Hossein1
1Département de Mathématiques, Faculté des Sciences III, Université Libanaise, Baabda, Lebanon
2Institut Camille Jordan, Villeurbanne Cedex, France
3Laboratoire J.A. Dieudonné, Parc Valrose, Nice Cedex 02, France

Tóm tắt

In the present paper, we consider degree 5 hyperbolic polynomials (HPs) in one variable (i.e., real and with all roots real). We are interested in such HPs whose number of equalities between roots of the polynomial and its derivatives is greater or equal to 4. We give a new method, based on resultants and subresultants, to calculate the overdetermined strata for degree 5 hyperbolic polynomials.

Tài liệu tham khảo

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