Geodesic
Oscillatory properties of the Green function of discontinuous boundary value problem for equations of the fourth order
Vladikavkazskij matematičeskij žurnal, Tome 17 (2015) no. 1, pp. 47-59 Cet article a éte moissonné depuis la source Math-Net.Ru

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We study the sign and oscillatory properties of the Green function of discontinuous boundary value problem for a fourth-order equation describing small deformations of two rigidly connected rods with elastic support at the connection point. We obtain criterion for the oscillatory property of the Green function. 
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R. Ch. Kulaev. Oscillatory properties of the Green function of discontinuous boundary value problem for equations of the fourth order. Vladikavkazskij matematičeskij žurnal, Tome 17 (2015) no. 1, pp. 47-59. http://geodesic.mathdoc.fr/item/VMJ_2015_17_1_a5/

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