Abstract
For higher-order elliptic operators with a potential, a lower estimate for the number of negative spectral points is obtained, depending on the order of the operator and the dimension of the space.
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Translated from Trudy Seminara imeni I. G. Petrovskogo, No. 27, Part I, pp. 67–74, 2009.
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Guseinov, R.V. On the number of negative spectrum points of elliptic operators. J Math Sci 163, 41–45 (2009). https://doi.org/10.1007/s10958-009-9661-2
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DOI: https://doi.org/10.1007/s10958-009-9661-2