Geodesic
On the number of solutions of a self-adjoint system of second-order differential equations in $L_2(0,\infty)$
Funkcionalʹnyj analiz i ego priloženiâ, Tome 6 (1972) no. 3, pp. 74-76 Cet article a éte moissonné depuis la source Math-Net.Ru

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     author = {G. A. Kalyabin},
     title = {On the number of solutions of a self-adjoint system of second-order differential equations in $L_2(0,\infty)$},
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}
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G. A. Kalyabin. On the number of solutions of a self-adjoint system of second-order differential equations in $L_2(0,\infty)$. Funkcionalʹnyj analiz i ego priloženiâ, Tome 6 (1972) no. 3, pp. 74-76. http://geodesic.mathdoc.fr/item/FAA_1972_6_3_a14/

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