Speaker:
Christian Remling
Institution:
University Osnabruck, Germany
Time:
Monday, August 30, 2004 - 2:00pm
Location:
MSTB 254
Consider a Schr"odinger operator on L_2(0,\infty),
and suppose that the potential V is known on an initial interval
[0,N]. We then prove bounds on the spectral measure \rho(I)
of intervals I. This extends (very) classical work of Chebyshev
and Markov on orthogonal polynomials.