Symmetric operator

Dependencies:

  1. Linear transformation
  2. Inner product space

Let $L: V \mapsto V$ be a linear transformation over an inner product space.

$L$ is a symmetric operator iff $(\forall u, v \in V, \langle L(u), v \rangle = \langle u, L(v) \rangle)$.

Dependency for:

  1. Symmetric operator iff hermitian
  2. Symmetric operator on V has a basis of orthonormal eigenvectors
  3. All eigenvalues of a symmetric operator are real

Info:

Transitive dependencies:

  1. Group
  2. Ring
  3. Field
  4. Vector Space
  5. Linear transformation
  6. Inner product space