%0 Journal Article %T Trace formulas for Schr dinger operators on the half-line %A Semra Demirel %A Muhammad Usman %J Bulletin of Mathematical Sciences %@ 1664-3615 %D 2011 %I Springer %R 10.1007/s13373-011-0016-1 %X We study the scattering problem for the Schr dinger equation on the half-line with the Robin boundary condition at the origin. We derive an expression for the trace of the difference of the perturbed and unperturbed resolvent in terms of a Wronskian. This leads to a representation for the perturbation determinant and to trace identities of Buslaev¨CFaddeev type. %U http://link.springer.com/article/10.1007/s13373-011-0016-1