Encounter at far point
Tóm tắt
This column is a place for those bits of contagious mathematics that travel from person to person in the community, because they are so elegant, suprising, or appealing that one has an urge to pass them on. Contributions are most welcome.
Tài liệu tham khảo
Guy, Richard.Unsolved Problems in Number Theory, 3rd ed. Springer, New York, 2004.
Kreisel, Tobias and Kurz, Sascha. There are integral heptagons, no three points on a line, no four on a circle.Discrete and Computational Geometry, to appear. DOI 10.1007/S00454-007-9038-6.
Kemnitz, A.Punktmengen mit ganzzahligen Abständen. Habilitationsschrift, TU Braunschweig, 1988.
Geelen, Jim, Guo, Anjie, and McKinnon, David. Straight line embeddings of cubic planar graphs with integer edge lengths.J. Graph Theory, to appear.
Berry, T. G. Points at rational distance from the vertices of a triangle.Acta Arith. 62 (1992)391–398.
Skiena, Steven, Smith, Warren, and Lemke, Paul.Reconstructing Sets From Interpoint Distances. Sixth ACM Symposium on Computational Geometry, June 1990 (final version, 1995).
Pegg, Ed. Web site http://www.mat.hpuzzle.com, material added 13 November 2006.