Publications Meetings The Profession Membership Programs Math Samplings Policy & Advocacy In the News About the AMS
|
   
Available in electronic format
Available in print format
Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(e) ISSN 0002-9939(p)

     

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
MathSciNet review: 2262860
Retrieve article in: PDF

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)


Similar Articles:

Retrieve articles in Proceedings of the American Mathematical Society with MSC (2000): 15A18, 15A42, 26C10, 30C15

Retrieve articles in all Journals with MSC (2000): 15A18, 15A42, 26C10, 30C15


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.




AMS and Social Media LinkedIn Facebook Podcasts Twitter YouTube RSS Feeds Blogs Wikipedia