Your browser does not fully support modern features. Please upgrade for a smoother experience.
Submitted Successfully!
Thank you for your contribution! You can also upload a video entry or images related to this topic. For video creation, please contact our Academic Video Service.
Version Summary Created by Modification Content Size Created at Operation
1 handwiki Vivi Li -- 2317 2022-11-21 01:35:04

Video Upload Options

We provide professional Academic Video Service to translate complex research into visually appealing presentations. Would you like to try it?
Cite
If you have any further questions, please contact Encyclopedia Editorial Office.
HandWiki. Properties of Polynomial Roots. Encyclopedia. Available online: https://encyclopedia.pub/entry/35421 (accessed on 22 September 2026).
HandWiki. Properties of Polynomial Roots. Encyclopedia. Available at: https://encyclopedia.pub/entry/35421. Accessed September 22, 2026.
HandWiki. "Properties of Polynomial Roots" Encyclopedia, https://encyclopedia.pub/entry/35421 (accessed September 22, 2026).
HandWiki. (2022, November 21). Properties of Polynomial Roots. In Encyclopedia. https://encyclopedia.pub/entry/35421
HandWiki. "Properties of Polynomial Roots." Encyclopedia. Web. 21 November, 2022.
Properties of Polynomial Roots
Edit

In mathematics, a univariate polynomial is an expression of the form where the ai belong to some field, which, in this article, is always the field [math]\displaystyle{ \mathbb C }[/math] of the complex numbers. The natural number n is known as the degree of the polynomial. In the following, p will be used to represent the polynomial, so we have A root of the polynomial p is a solution of the equation p = 0: that is, a complex number a such that p(a) = 0. The fundamental theorem of algebra combined with the factor theorem states that the polynomial p has n roots in the complex plane, if they are counted with their multiplicities. This article concerns various properties of the roots of p, including their location in the complex plane.

natural number complex number multiplicities

References

  1. Tyrtyshnikov, E.E. (1997). A Brief Introduction to Numerical Analysis. Birkhäuser Boston. ISBN 0-8176-3916-0. 
  2. S. Sastry (2004). Engineering Mathematics. PHI Learning. pp. 72–73. ISBN 81-203-2579-6. 
  3. Marden, M. (1966). Geometry of Polynomials. Amer. Math. Soc.. ISBN 0-8218-1503-2. 
  4. Fujiwara, M. (1916). "Über die obere Schranke des absoluten Betrages der Wurzeln einer algebraischen Gleichung". Tohoku Mathematical Journal. First series 10: 167–171. https://www.jstage.jst.go.jp/article/tmj1911/10/0/10_0_167/_pdf. 
  5. Kojima, T. (1917). "On the limits of the roots of an algebraic equation". Tohoku Mathematical Journal. First series 11: 119–127. https://www.jstage.jst.go.jp/article/tmj1911/11/0/11_0_119/_pdf. 
  6. Cauchy AL (1829) Exercises de mathematique. Oeuvres 2 (9) p122
  7. Lagrange J–L (1798) Traite de la r'esolution des equations numeriques. Paris.
  8. Hirst, Holly P.; Macey, Wade T. (1997). "Bounding the Roots of Polynomials". The College Mathematics Journal 28 (4): 292–295. 
  9. Sun, Y. J.; Hsieh, J. G. (1996). "A note on circular bound of polynomial zeros". IEEE Trans Circuits Syst. I 43 (6): 476–478. doi:10.1109/81.503258.  https://dx.doi.org/10.1109%2F81.503258
  10. Mignotte, Maurice (1983). "Some useful bounds". Computer Algebra : Symbolic and Algebraic Computation. Vienna: Springer. pp. 259–263. ISBN 0-387-81776-X. https://books.google.com/books?id=qCX4CAAAQBAJ&pg=PA259. 
  11. Vigklas, Panagiotis, S. (2010). Upper bounds on the values of the positive roots of polynomials. Ph. D. Thesis, University of Thessaly, Greece. http://www.inf.uth.gr/wp-content/uploads/formidable/phd_thesis_vigklas.pdf. 
  12. Akritas, Alkiviadis, G. (2009). "Linear and Quadratic Complexity Bounds on the Values of the Positive Roots of Polynomials". Journal of Universal Computer Science 15 (3): 523–537. http://www.jucs.org/jucs_15_3/linear_and_quadratic_complexity. 
  13. Laguerre E (1880). "Sur une méthode pour obtenir par approximation les racines d'une équation algébrique qui a toutes ses racines réelles". Nouvelles Annales de Mathématiques. 2 19: 161–172, 193–202. http://www.numdam.org/numdam-bin/browse?id=NAM_1880_2_19_. .
  14. Kac, M. (1943). "On the average number of real roots of a random algebraic equation". Bulletin of the American Mathematical Society 49 (4): 314–320. doi:10.1090/S0002-9904-1943-07912-8.  https://dx.doi.org/10.1090%2FS0002-9904-1943-07912-8
  15. Kac, M. (1948). "On the Average Number of Real Roots of a Random Algebraic Equation (II)". Proceedings of the London Mathematical Society. Second Series 50 (1): 390–408. doi:10.1112/plms/s2-50.5.390.  https://dx.doi.org/10.1112%2Fplms%2Fs2-50.5.390
More
Upload a video for this entry
Information
Subjects: Others
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register :
View Times: 2.9K
Entry Collection: HandWiki
Revision: 1 time (View History)
Update Date: 21 Nov 2022
Notice
You are not a member of the advisory board for this topic. If you want to update advisory board member profile, please contact office@encyclopedia.pub.
OK
Confirm
Only members of the Encyclopedia advisory board for this topic are allowed to note entries. Would you like to become an advisory board member of the Encyclopedia?
Yes
No
${ textCharacter }/${ maxCharacter }
Submit
Cancel
There is no comment~
${ textCharacter }/${ maxCharacter }
Submit
Cancel
${ selectedItem.replyTextCharacter }/${ selectedItem.replyMaxCharacter }
Submit
Cancel
Confirm
Are you sure to Delete?
Yes No
Academic Video Service