On Roots of Polynomials with Positive Coefficients
Toufik Zaïmi (2011)
Publications de l'Institut Mathématique
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Toufik Zaïmi (2011)
Publications de l'Institut Mathématique
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Andrej Dujella, Tomislav Pejković (2011)
Rendiconti del Seminario Matematico della Università di Padova
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Henryk Górecki (2009)
International Journal of Applied Mathematics and Computer Science
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The paper concerns the problem of decomposition of a large-scale linear dynamic system into two subsystems. An equivalent problem is to split the characteristic polynomial of the original system into two polynomials of lower degrees. Conditions are found concerning the coefficients of the original polynomial which must be fulfilled for its factorization. It is proved that knowledge of only one of the symmetric functions of those polynomials of lower degrees is sufficient for factorization...
Christoph Schwarzweller (2017)
Formalized Mathematics
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In this article we further extend the algebraic theory of polynomial rings in Mizar [1, 2, 3]. We deal with roots and multiple roots of polynomials and show that both the real numbers and finite domains are not algebraically closed [5, 7]. We also prove the identity theorem for polynomials and that the number of multiple roots is bounded by the polynomial’s degree [4, 6].
Wolfgang Schmidt (1977)
Acta Arithmetica
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Miloš Kössler (1951)
Czechoslovak Mathematical Journal
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Gallardo, Luis H. (2006)
Applied Mathematics E-Notes [electronic only]
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Umberto Zannier (2004)
Rendiconti del Seminario Matematico della Università di Padova
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Jorgen Cherly, Luis Gallardo, Leonid Vaserstein, Ethel Wheland (1998)
Publicacions Matemàtiques
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We are concerned with solving polynomial equations over rings. More precisely, given a commutative domain A with 1 and a polynomial equation antn + ...+ a0 = 0 with coefficients ai in A, our problem is to find its roots in A. We show that when A = B[x] is a polynomial ring, our problem can be reduced to solving a finite sequence of polynomial equations over B. As an application of this reduction,...