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Bounds and a majorization for the real parts of the zeros of polynomials

Author(s): Fuad Kittaneh
Journal: Proc. Amer. Math. Soc. 135 (2007), 659-664.
MSC (2000): Primary 15A18, 15A42, 26C10, 30C15
Posted: August 31, 2006
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Abstract | References | Similar articles | Additional information

Abstract: We apply some eigenvalue inequalities to the real parts of the Frobenius companion matrices of monic polynomials to establish new bounds and a majorization for the real parts of the zeros of these polynomials.


References:

[1]
A. A. Abdurakhmanov, The geometry of the Hausdorff domain in localization problems for the spectrum of arbitrary matrices, Math. USSR-Sb. 59 (1988), 39-51. MR 0868600 (88e:47010)

[2]
Y. A. Alpin, M.-T. Chien and L. Yeh, The numerical radius and bounds for zeros of a polynomial, Proc. Amer. Math. Soc. 131 (2003), 725-730. MR 1937409 (2003h:26021)

[3]
R. Bhatia, Matrix Analysis, Springer, New York, 1997. MR 1477662 (98i:15003)

[4]
M. Fujii and F. Kubo, Operator norms as bounds for roots of algebraic equations, Proc. Japan Acad. Sci. 49 (1973), 805-808. MR 0364310 (51:565)

[5]
M. Fujii and F. Kubo, Buzano's inequality and bounds for roots of algebraic equations, Proc. Amer. Math. Soc. 117 (1993), 359-361. MR 1088441 (93d:47014)

[6]
K. E. Gustafson and D. K. M. Rao, Numerical Range, Springer, New York, 1997. MR 1417493 (98b:47008)

[7]
R. A. Horn and C. R. Johnson, Matrix Analysis, Cambridge Univ. Press, Cambridge, 1985. MR 0832183 (87e:15001)

[8]
R. A. Horn and C. R. Johnson, Topics in Matrix Analysis, Cambridge Univ. Press, Cambridge, 1991. MR 1091716 (92e:15003)

[9]
F. Kittaneh, Singular values of companion matrices and bounds on zeros of polynomials, SIAM J. Matrix Anal. Appl. 16 (1995), 333-340. MR 1311437 (95m:15015)

[10]
F. Kittaneh, A numerical radius inequality and an estimate for the numerical radius of the Frobenius companion matrix, Studia Math. 158 (2003), 11-17. MR 2014548 (2004i:15022)

[11]
F. Kittaneh, Bounds for the zeros of polynomials from matrix inequalities, Arch. Math. (Basel) 81 (2003), 601-608. MR 2029723 (2004j:15035)

[12]
H. Linden, Bounds for the zeros of polynomials from eigenvalues and singular values of some companion matrices, Linear Algebra Appl. 271 (1998), 41-82. MR 1485162 (98m:65059)

[13]
H. Linden, Numerical radii of some companion matrices and bounds for the zeros of polynomials, in: Analytic and Geometric Inequalities and Applications, Math. Appl. 478, Kluwer, Dordrecht, 1999, 205-229. MR 1785871 (2001i:15031)

[14]
M. Marden, Geometry of Polynomials, 2nd ed., Math. Surveys 3, Amer. Math. Soc., Providence, RI, 1966. MR 0225972 (37:1562)

[15]
A. W. Marshall and I. Olkin, Inequalities: Theory of Majorization and Its Applications, Academic Press, New York, 1979. MR 0552278 (81b:00002)

[16]
G. Schmeisser, Sharp inequalities for the zeros of polynomials and power series, Result. Math. 39 (2001), 333-344. MR 1834579 (2002c:30011)


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Additional Information:

Fuad Kittaneh
Affiliation: Department of Mathematics, University of Jordan, Amman, Jordan
Email: fkitt@ju.edu.jo

DOI: 10.1090/S0002-9939-06-08509-1
PII: S 0002-9939(06)08509-1
Keywords: Frobenius companion matrix, zeros of polynomials, eigenvalue, majorization
Received by editor(s): August 9, 2004
Received by editor(s) in revised form: September 28, 2005
Posted: August 31, 2006
Communicated by: Joseph A. Ball
Copyright of article: Copyright 2006, American Mathematical Society
The copyright for this article reverts to public domain after 28 years from publication.


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