Skip to main content

On the Heilbronn Optimal Configuration of Seven Points in the Square

  • Conference paper
Automated Deduction in Geometry (ADG 2008)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 6301))

Included in the following conference series:

Abstract

In this paper, we prove that for any seven points in a unit square there exist three points whose area is not greater than a constant h 7 = 0.083859... as conjectured by Francesc Comellas and J. Luis A. Yebra in 2002.

This work is supported by the National Natural Science Foundation of China (No. 10471044) and the Major Research Plan of the National Natural Science Foundation of China (No. 90718041).

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 39.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight 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. Aichholzer, O., Aurenhammer, F., Krasser, H.: Enumerating order types for small point sets with applications. Order 19(3), 265–281 (2002)

    Article  MathSciNet  MATH  Google Scholar 

  2. Aichholzer, O., Krasser, H.: Abstract order type extension and new results on the rectilinear crossing number. Computational Geometry: Theory and Applications, Special Issue on the 21st European Workshop on Computational Geometry 36(1), 2–15 (2006)

    Article  MathSciNet  MATH  Google Scholar 

  3. Comellas, F., Yebra, J.L.A.: New lower bounds for heilbronn numbers. Electr. J. Comb. 9(6), 1–10 (2002)

    MathSciNet  MATH  Google Scholar 

  4. Dress, A.W.M., Yang, L., Zeng, Z.: Heilbronn problem for six points in a planar convex body. In: Combinatorics and Graph Theory 1995, vol. 1 (Hefei), pp. 97–118. World Sci. Publishing, Singapore (1995)

    Google Scholar 

  5. Goldberg, M.: Maximizing the smallest triangle made by n points in a square. Math. Magazine 45(3), 135–144 (1972)

    Article  MathSciNet  MATH  Google Scholar 

  6. Yang, L., Zeng, Z.: Heilbronn problem for seven points in a planar convex body. In: Dingzhu, D., Pardalos, P.M. (eds.) Minimax and Applications (1995)

    Google Scholar 

  7. Yang, L., Zhang, J., Zeng, Z.: On exact values of heilbronn numbers for triangular regions. Tech. Rep. 91-098, Universität Bielefeld (1991)

    Google Scholar 

  8. Yang, L., Zhang, J., Zeng, Z.: On goldberg’s conjecture: Computing the first several heilbronn numbers. Tech. Rep. 91-074, Universität Bielefeld (1991)

    Google Scholar 

  9. Yang, L., Zhang, J., Zeng, Z.: A conjecture on the first several heilbronn numbers and a computation. Chinese Ann. Math. Ser. A, 13, 503–515 (1992)

    MathSciNet  MATH  Google Scholar 

  10. Zeng, Z., Shan, M.: Semi-mechanization method for an unsolved optimization problem in combinatorial geometry. In: Proceedings of the 2007 ACM Symposium on Applied Computing, pp. 762–766. ACM, New York (2007)

    Chapter  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2011 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Zeng, Z., Chen, L. (2011). On the Heilbronn Optimal Configuration of Seven Points in the Square. In: Sturm, T., Zengler, C. (eds) Automated Deduction in Geometry. ADG 2008. Lecture Notes in Computer Science(), vol 6301. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21046-4_11

Download citation

  • DOI: https://doi.org/10.1007/978-3-642-21046-4_11

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-21045-7

  • Online ISBN: 978-3-642-21046-4

  • eBook Packages: Computer ScienceComputer Science (R0)

Publish with us

Policies and ethics