In the theory of lattices, the dual lattice is a construction analogous to that of a dual vector space. In certain respects, the geometry of the dual lattice of a lattice L {\textstyle L} is the reciprocal of the geometry of L {\textstyle L} , a perspective which underlies many of its uses.
In the theory of lattices, the dual lattice is a construction analogous to that of a dual vector space. In certain respects, the geometry of the dual lattice of a lattice L {\textstyle L} is the reciprocal of the geometry of L {\textstyle L} , a perspective which underlies many of its uses.
Source: Wikipedia "Dual lattice" · CC BY-SA 4.0
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