Point Configurations That Are Asymmetric Yet Balanced
Schürmann, AchillNote: Order does not necessarily reflect citation order of authors.
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CitationCohn, Henry, Elkies, Noam, Kumar, Abhinav, and Achill Schuermann. 2010. Point configurations that are asymmetric yet balanced. Proceedings of the American Mathematical Society 138 (2010): 2863-2872.
AbstractA configuration of particles confined to a sphere is balanced if it is in equilibrium under all force laws (that act between pairs of points with strength given by a fixed function of distance). It is straightforward to show that every sufficiently symmetrical configuration is balanced, but the converse is far from obvious. In 1957 Leech completely classified the balanced configurations in \(R^3\), and his classification is equivalent to the converse for \(R^3\). In this paper we disprove the converse in high dimensions. We construct several counterexamples, including one with trivial symmetry group.
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