elementary braid

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• Braid theory — The braid is associated with a planar graph. The 24 elements of a permutatio …   Wikipedia

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• Boundary representation — In solid modeling and computer aided design, boundary representation often abbreviated as B rep or BREP is a method for representing shapes using the limits. A solid is represented as a collection of connected surface elements, the boundary… …   Wikipedia

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• Whitehead torsion — In mathematics, Whitehead torsion is an invariant of an h cobordism in a Whitehead group, that is important in simple homotopy theory and surgery theory. It is named for J. H. C. Whitehead.Whitehead torsionSuppose that W is an h cobordism from M… …   Wikipedia

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• Dehornoy order — in mathematics, the Dehornoy order is a left invariant total order on the braid group, found by Patrick Dehornoy (1994, 1995). Dehornoy s original discovery of the order on the braid group used huge cardinals, but there are now several more… …   Wikipedia

• Identical particles — Statistical mechanics Thermodynamics · …   Wikipedia

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