quadratic-forms
Articles
- Witt groupAlgebra term
- Unimodular latticeIntegral lattice of determinant 1 or –1
- Leech lattice24-dimensional repeating pattern of points
- Coxeter–Todd lattice
- Niemeier latticePositive-definite integral set of repeated points with Abelian group-rank 24
- Coxeter–Todd lattice
- Positive definiteness
- Perfect latticeEuclidean lattice
- Hasse invariant of a quadratic form
- Smith–Minkowski–Siegel mass formula
- Isotropic quadratic form1=Quadratic form for which there is a non-zero vector on which the form evaluates to zero
- Pfister formQuadratic form
- Coxeter–Todd lattice
- Eutactic latticeSet of points in Euclidean space
- Binary quadratic formQuadratic homogeneous polynomial in two variables
- Coxeter–Todd lattice
- Niemeier latticePositive-definite integral set of repeated points with Abelian group-rank 24
- Spinor genus
- II25,1
- Genus of a quadratic formMathematical concept