# Lattices and Quadratic Forms

LatticesInteger lattice construction, bases, reduction and enumeration.

[Lattices](Lattices/index-lattices.md)Lattices over Number FieldsLattices over number fields, including Lorentzian lattices.

[Lattices over Number Fields](LatticesOverNumberFields/index-lattices-over-number-fields.md)Lattices with Group ActionLattices with a group action: automorphisms and isometries.

[Lattices with Group Action](LatticesWithGroupAction/index-lattices-with-group-action.md)Quadratic FormsQuadratic forms: construction, local invariants and equivalence testing.

[Quadratic Forms](QuadraticForms/index-quadratic-forms.md)Binary Quadratic FormsBinary quadratic forms: reduction, invariants and class groups.

[Binary Quadratic Forms](BinaryQuadraticForms/index-binary-quadratic-forms.md)