 03316 Fritz Gesztesy and Barry Simon
 Connectedness of the Isospectral Manifold for OneDimensional HalfLine
Schr\"odinger Operators
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Jul 1, 03

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Abstract. Let V_0 be a realvalued function on [0,\infty) and V\in L^1([0,R])
for all R>0 so that H(V_0)= \f{d^2}{dx^2}+V_0 in L^2([0,\infty))
with u(0)=0 boundary conditions has discrete spectrum bounded from
below. Let \calM (V_0) be the set of V so that H(V) and H(V_0) have
the same spectrum. We prove that \calM(V_0) is connected.
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