Trace formulas for Schrödinger operators on the half-line

Trace formulas for Schrödinger operators on the half-line
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半线上薛定谔算子的迹公式

DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
Muhammad Usman
Muhammad Usman
中科院分区:
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文献类型:
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作者:
S. Demirel;Muhammad Usman

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研究了原点为Robin边界条件的薛定谔方程在半直线上的散射问题。我们得到了用Wronskian表示的扰动预解与未扰动预解之差的迹的表达式。这导致了摄动行列式的表示和跟踪Buslaev-Faddeev类型的恒等式。
We study the scattering problem for the Schrödinger 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–Faddeev type.