MathSciNet bibliographic data MR2552106 34L40 (34B40 35J10 47E05) Killip, Rowan; Simon, Barry Sum rules and spectral measures of Schrödinger operators with \$L\sp 2\$$L\sp 2$ potentials. Ann. of Math. (2) 170 (2009), no. 2, 739–782. Article

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