Proceedings of the American Mathematical Society, Vol. 132, No. 12 (Dec., 2004), pp. 3491-3502 (12 pages) We educe an orthonormal system of step functions for the interval [0,1]. This system contains ...

This is a preview. Log in through your library . Abstract The subject of this paper are polynomials in multiple non-commuting variables. For polynomials of this type orthogonal with respect to a state ...

Think about a baseball game. The batter has to decide whether and how to hit the incoming pitch. He needs to judge the position and speed of the ball, given his own visual uncertainty, and to estimate ...