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Translated from Matematicheskie Zametki, Vol. 47, No. 4, pp. 77–82, April, 1990.
The author thanks B. M. Levitan for showing interest in this work.
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Mirzoev, K.A. Existence conditions for solutions of the equation y″=qy which do not belong to the space ℒ P(0, +∞). Mathematical Notes of the Academy of Sciences of the USSR 47, 364–368 (1990). https://doi.org/10.1007/BF01163819
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DOI: https://doi.org/10.1007/BF01163819