H Square
In mathematics and control theory, H2, or H-square is a Hardy space with square norm. It is a subspace of L2 space, and is thus a Hilbert space. In particular, it is a reproducing kernel Hilbert space.
Read more about H Square: On The Unit Circle, On The Half-plane, See Also
Famous quotes containing the word square:
“I walked by the Union Square Bar, I was gonna go in. And I saw myself, my reflection in the window. And I thought, I wonder who that bum is. And then I saw it was me. Now look at me, Im a bum. Look at me. Look at you. Youre a bum.”
—J.P. (James Pinckney)