Abstract
For the equation \((-\Delta )^{m}U+a(x)U=0 \), where \(\Delta \) is the Laplace operator, with a measurable locally bounded coefficient \( a(x)\), we give the oscillation and nonoscillation criteria in an unbounded domain that can be narrowing or expanding in a certain way at infinity.
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The author expresses his deep gratitude to the reviewer of the article for valuable comments.
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Translated by V. Potapchouck
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Toraev, A. On the Oscillation Properties of Elliptic Equations in Unbounded Domains. Diff Equat 58, 1432–1437 (2022). https://doi.org/10.1134/S00122661220100123
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DOI: https://doi.org/10.1134/S00122661220100123