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A note on inverses of differential operators

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References

  1. Hartman, P.: On the spectra of slightly disturbed linear oscillators. Amer. J. Math.71, 71–79 (1949).

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  2. Hartman, P. andA. Wintner: On perturbations of the continuous spectrum of the harmonic oscillator. Amer. J. Math.74, 79–85 (1952).

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  3. Putnam, C. R.: The comparison of spectra belonging to potentials with a bounded difference. Duke Math. J.18, 267–273 (1951).

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Authors and Affiliations

  1. Dept. of Math., Purdue University, Lafayette, Ind., USA

    C. R. Putnam

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  1. C. R. Putnam
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This work was supported by the National Science Foundation research grant NSF-G 481.

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Putnam, C.R. A note on inverses of differential operators. Math Z 64, 149–150 (1956). https://doi.org/10.1007/BF01166562

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  • DOI: https://doi.org/10.1007/BF01166562

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