Category
page 1Multilinear algebra
Einstein notation
shorthand notation for tensor operations
triple product
ternary operation on vectors
bilinear form
linear functional on tensor product square of a vector space
skew lines
lines in 3D that do not intersect and neither do they point the same direction
multilinear algebra
branch of mathematics
homogeneous polynomial
polynomial whose nonzero terms all have the same degree
tensor field
assignment of a tensor continuously varying across a mathematical space
bilinear map
from two vector spaces to a third one
multilinear map
from two vector spaces to a third one
exterior algebra
algebraic construction used in Euclidean geometry
tensor algebra
universal construction in multilinear algebra

Pfaffian
thumb | right | alt=Johann Friedrich Pfaff | Johann Friedrich Pfaff
In mathematics, the determinant of an m-by-m skew-symmetric matrix can always be written as the square of a polynomial in the matrix entries, a polynomial with integer coefficients that only depends on m. When m is odd, the polynomial is zero, and when m is even, it is a nonzero polynomial of degree m/2, and is unique up to multiplication by ±1. The convention on skew-symmetric tridiagonal matrices, given below in the examples, then determines one specific polynomial, called the Pfaffian polynomial. The value of this polyn
bivector
thumb|170px|Parallel plane segments with the same orientation and area corresponding to the same bivector .
Lagrange's identity
mathematical identity in algebra
multivector
thumb|Relations between scalars, vectors, simple -vectors, -vectors, and multivectors. Depending on the authors, a "multivector" may be either homogeneous or a mixture of different values of . This graph picks the latter.
symmetric algebra
algebra of all possible symmetric tensors over a vector space or ring module
multilinear form
Plücker coordinates
method of assigning coordinates to every line in projective 3-space
Binet–Cauchy identity
theorem
interior product
binary operation between a vector field and a differential form

tensor product of modules
operation that pairs a left and a right 𝑅‐module into an abelian group
cubic form
homogeneous polynomial of degree 3