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  2. Lattice constant - Wikipedia

    en.wikipedia.org/wiki/Lattice_constant

    A simple cubic crystal has only one lattice constant, the distance between atoms, but in general lattices in three dimensions have six lattice constants: the lengths a, b, and c of the three cell edges meeting at a vertex, and the angles α, β, and γ between those edges. The crystal lattice parameters a, b, and c have the

  3. Map of lattices - Wikipedia

    en.wikipedia.org/wiki/Map_of_lattices

    An algebraic lattice is complete. (def) 10. A complete lattice is bounded. 11. A heyting algebra is bounded. (def) 12. A bounded lattice is a lattice. (def) 13. A heyting algebra is residuated. 14. A residuated lattice is a lattice. (def) 15. A distributive lattice is modular. [3] 16. A modular complemented lattice is relatively complemented ...

  4. Metric lattice - Wikipedia

    en.wikipedia.org/wiki/Metric_lattice

    Example valuation function on the cube lattice which makes it a metric lattice. In the mathematical study of order , a metric lattice L is a lattice that admits a positive valuation : a function v ∈ L → ℝ satisfying, for any a , b ∈ L , [ 1 ] v ( a ) + v ( b ) = v ( a ∧ b ) + v ( a ∨ b ) {\displaystyle v(a)+v(b)=v(a\wedge b)+v(a\vee ...

  5. Fractional coordinates - Wikipedia

    en.wikipedia.org/wiki/Fractional_coordinates

    A lattice in which the conventional basis is primitive is called a primitive lattice, while a lattice with a non-primitive conventional basis is called a centered lattice. The choice of an origin and a basis implies the choice of a unit cell which can further be used to describe a crystal pattern.

  6. Lattice (order) - Wikipedia

    en.wikipedia.org/wiki/Lattice_(order)

    A lattice is an abstract structure studied in the mathematical subdisciplines of order theory and abstract algebra.It consists of a partially ordered set in which every pair of elements has a unique supremum (also called a least upper bound or join) and a unique infimum (also called a greatest lower bound or meet).

  7. Unimodular lattice - Wikipedia

    en.wikipedia.org/wiki/Unimodular_lattice

    In geometry and mathematical group theory, a unimodular lattice is an integral lattice of determinant 1 or −1. For a lattice in n-dimensional Euclidean space, this is equivalent to requiring that the volume of any fundamental domain for the lattice be 1. The E 8 lattice and the Leech lattice are two famous examples.

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