Zeros of the eigenfunctions of the singular operator $(-\Delta)^m+q(x)$
Differencialʹnye uravneniâ, Tome 24 (1988) no. 9, pp. 1649-1650.

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     author = {A. K. Pulatov},
     title = {Zeros of the eigenfunctions of the singular operator $(-\Delta)^m+q(x)$},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1649--1650},
     publisher = {mathdoc},
     volume = {24},
     number = {9},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1988_24_9_a28/}
}
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A. K. Pulatov. Zeros of the eigenfunctions of the singular operator $(-\Delta)^m+q(x)$. Differencialʹnye uravneniâ, Tome 24 (1988) no. 9, pp. 1649-1650. http://geodesic.mathdoc.fr/item/DE_1988_24_9_a28/