The Mathematical Intelligencer

, Volume 35, Issue 2, pp 10–15 | Cite as

Triangle Mysteries

  • Ehrhard BehrendsEmail author
  • Steve Humble
Mathematical Gems and Curiosities Sergei Tabachnikov, Editor


Abelian Group Mathematical Intelligencer Prime Divisor Great Common Divisor Bottom Element 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.



Ehrhard Behrends expresses his gratitude to Günter Ziegler for making available the preprint [1] and the discussion concerning the connections of our results with the Balak Ram theorem.


  1. [1]
    Pavle V. M. Blagojević and Günter M. Ziegler. Convex Equipartitions via Equivariant Obstruction Theory. arXiv:1202.5504v2, 17 pages.Google Scholar
  2. [2]
    H. Joris, C. Oestreicher and J. Steinig. The greatest common divisor of certain sets of binomial coefficients. J. Number Theory, 21 (1985), 101–119.Google Scholar
  3. [3]
    Balak Ram. Common Factors of \(\frac{n!}{m!(n-m)!}, m=1, {\ldots}, n-1.\) Jour. Indian Mathematical Club, 1 (1909), 39–43.Google Scholar

Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Mathematisches InstitutFreie Universität BerlinBerlinGermany
  2. 2.Education DepartmentNewcastle UniversityNewcastle upon TyneEngland

Personalised recommendations