Difference between revisions of "Quadratic form"
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Revision as of 21:22, 3 September 2016
In mathematics, a quadratic form is a homogeneous polynomial of degree two in a number of variables.
Description
Quadratic forms occupy a central place in various branches of mathematics, including number theory, linear algebra, group theory (orthogonal group), differential geometry (Riemannian metric), differential topology (intersection forms of four-manifolds), and Lie theory (the Killing form).
See also
- ε-quadratic form
- Quadratic form (statistics)
- Quadric
- Discriminant of a quadratic form
- Cubic form
- Witt group
- Witt's theorem
- Hasse–Minkowski theorem
- Orthogonal group
- Square class
- Ramanujan's ternary quadratic form
- Variable (mathematics)
External links
- Quadratic form @ Wikipedia.org
