Orthonormal Basis - Incomplete Orthogonal Sets

Incomplete Orthogonal Sets

Given a Hilbert space H and a set S of mutually orthogonal vectors in H, we can take the smallest closed linear subspace V of H containing S. Then S will be an orthogonal basis of V; which may of course be smaller than H itself, being an incomplete orthogonal set, or be H, when it is a complete orthogonal set.

Read more about this topic:  Orthonormal Basis

Famous quotes containing the words incomplete and/or sets:

    I dont think there is anything on earth more wonderful than those wistful incomplete friendships one makes now and then in an hour’s talk. You never see the people again, but the lingering sense of their presence in the world is like the glow of an unseen city at night—makes you feel the teemingness of it all.
    John Dos Passos (1896–1970)

    And weren’t there special cemetery flowers,
    That, once grief sets to growing, grief may rest:
    The flowers will go on with grief awhile,
    And no one seem neglecting or neglected?
    A prudent grief will not despise such aids.
    Robert Frost (1874–1963)