This quantity for a group representation is the character evaluated at the identity element.
This quantity for a group representation is the character evaluated at the identity element. The rank and nullity of a linear transformation sum to this quantity. It is given by the trace of an identity matrix. When this quantity is finite, two vector spaces with the same value of it are isomorphic. This is the size of a basis, or the maximum number of linearly independent vectors. This quantity is denoted by n when talking about the Euclidean space "R n", and is the precise number of coordinates needed to specify a point. For 10 points, identify this quantity which is three for a cube and two for a square.
This quantity for a group representation is the character evaluated at the identity element.
dimension