Skip to main content

Infimum of Polynomials and Singularity at Infinity

  • Chapter
From Local to Global Optimization

Part of the book series: Nonconvex Optimization and Its Applications ((NOIA,volume 53))

  • 455 Accesses

Abstract

We prove that if c is the infimum value of a polynomial of two variables f and if f does not attain c,then c is a critical value of singularties at infinity of the global Milnor fibration of f. This provides a method of complex geometry for finding the infimum values of real polynomials

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Arnold, V.I., Gussein-Zade, S.M., Varchenko, A.N., ( 1985 and 1988), Singularites of differentiable maps, Vols 1 and 2, Monographs in Mathematics 82 and 83, Birkhäuser, Boston.

    Google Scholar 

  2. Artal Bartolo, E., (1995), Une démonstration géometrique du théorème d’Abhyankar - Moh, J. rein angew. Math. 464, 97–108.

    Google Scholar 

  3. Bochnak, J., Lojasiewicz, S., A converse of the Kuiper-Kuo Theorem. Proc. of Liverpool Singularities Symposiums, 1993 LNM, 246–254.

    Google Scholar 

  4. Bresis, H., Points critiques dans les problèmes variationels sans compacité. Seminaire Bourbaki, 1987–88, No 698.

    Google Scholar 

  5. Broughton, S., (1988) Milnor numbers and Topology of polynomial hypersurfaces. Invent. Math. 92, 217–241.

    Google Scholar 

  6. Cassou - Noguès, P., Dimca, A., Sur la topologie des polynômes complexes. Preprint Univ. Bordeaux 7/1996.

    Google Scholar 

  7. Chadzynski, J., Ploski, A., (1988), An inequality for the Intersection multiplicity of analytic curves. Bul. Pol. Acad. Sci., Math. No. 3–4, 12–17.

    Google Scholar 

  8. Clarke, F.H., (1989), Optimization and nonsmooth analysis. Les publications CRM, Univ. de Montréal.

    MATH  Google Scholar 

  9. Durfee, A.H., (1997), Five definitions of critical point at infinity. Proceedings of the Oberwolfach Conference in honor of Brieskorn’s 60th birthday, to appear.

    Google Scholar 

  10. Fourrier, L., (1996), Topologie d’un polynôme de deux variables complexes au voisinage de l’infini. Annales de L’Institut Fourier, T. 46, 645–687.

    Google Scholar 

  11. Hà, H.V., (1989), Sur la libration globale des polynômes de deux variables complexes. C.R. Acad. Sci. Paris, Série I, 309, 231–234.

    Google Scholar 

  12. Hà, H.V., Lé, D.T., (1984), Sur la topologie des polynômes complexes. Acta Math. Vietnamica 9, 21–32.

    Google Scholar 

  13. Hà, H.V., Zaharia, A., (1996), Families of polynomials with total Milnor number constant. Math. Annalen, 304, 481–488.

    Google Scholar 

  14. Kuo, T.C., Lu, Y.C., (1977), On analytic function germs of two complex variables. Topology, Vol. 16, 299–310.

    Google Scholar 

  15. Lê, D.T., Ramanujam, C.P., (1976), The invariance of Milnor’s number implies the invariance of the topological type. Am. J. of Math. 98, N. 1, 67–78.

    Google Scholar 

  16. Lê, D.T., Teissier, B., (1983), Cycles évanescents et conditions de Whitney II. Proceedings of Symp. Pure Math. 40, Part 2, 65–103.

    Google Scholar 

  17. Lé, D.T., Weber, C., (1994), A geometrical approach to the Jacobian conjecture for n= 2. Kodai Math. J., 17, 347–381.

    Google Scholar 

  18. Milnor, J., (1968), Singular points of complex hypersurfaces. Ann. of Math. Studies, 61, Princeton Univ. Press.

    Google Scholar 

  19. Némethi, A., Zaharia, A., (1992), Milnor fibration at infinity. Indag. Math., N.S. 3(3), 323–335.

    Google Scholar 

  20. Neumann, W., (1989), Complex algebraic plane curves via their links at infinity. Invent. Math. 98, 445–489.

    Google Scholar 

  21. Parusinski, A., (1995), On the bifurcation set of complex polynomial with isolated singularities at infinity. Compositio Math. 97, 369–384.

    Google Scholar 

  22. Siersrna, J.D., Tibar, M., (1995), Singularities at infinity and their vanishing cycles. Duke Math. J., 80, 771–783.

    Google Scholar 

  23. Teissier, B., (1973), Cycles évanescents, sections planes et conditions de Whitney. Asterisque 718, 285–362.

    Google Scholar 

  24. Thom, R., (1969), Ensembles et morphismes stratifiés. Bull. Amer. Math. Soc. 75, 240–284.

    Google Scholar 

  25. Walker, R., (1950), Algebraic curves. Princeton Univ. Press.

    MATH  Google Scholar 

  26. Zariski, 0., (1965), Studies in equisingularity II: Equisingularity in codimension 1. Am. J. of Math., 87, 1324–1351.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2001 Springer Science+Business Media Dordrecht

About this chapter

Cite this chapter

Vui, H.A.H. (2001). Infimum of Polynomials and Singularity at Infinity. In: Migdalas, A., Pardalos, P.M., Värbrand, P. (eds) From Local to Global Optimization. Nonconvex Optimization and Its Applications, vol 53. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-5284-7_9

Download citation

  • DOI: https://doi.org/10.1007/978-1-4757-5284-7_9

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4419-4852-6

  • Online ISBN: 978-1-4757-5284-7

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics