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Hermite constant information


In mathematics, the Hermite constant, named after Charles Hermite, determines how long a shortest element of a lattice in Euclidean space can be.

The constant γn for integers n > 0 is defined as follows. For a lattice L in Euclidean space Rn with unit covolume, i.e. vol(Rn/L) = 1, let λ1(L) denote the least length of a nonzero element of L. Then γn is the maximum of λ1(L) over all such lattices L.

The square root in the definition of the Hermite constant is a matter of historical convention.

Alternatively, the Hermite constant γn can be defined as the square of the maximal systole of a flat n-dimensional torus of unit volume.

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Hermite constant

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the Hermite constant, named after Charles Hermite, determines how long a shortest element of a lattice in Euclidean space can be. The constant γn for...

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Close-packing Centered hexagonal number Eisenstein integer Voronoi diagram Hermite constant Rana, Farhan. "Lattices in 1D, 2D, and 3D" (PDF). Cornell University...

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Systolic geometry

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Stieltjes constants

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