Geodesic
On unstable neutral differential equations of the second order
Czechoslovak Mathematical Journal, Tome 52 (2002) no. 4, pp. 739-747 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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The aim of this paper is to present sufficient conditions for all bounded solutions of the second order neutral differential equation \[ \big (x(t)-px(t-\tau )\big )^{\prime \prime }- q(t)x\big (\sigma (t)\big )=0 \] to be oscillatory and to improve some existing results. The main results are based on the comparison principles.
The aim of this paper is to present sufficient conditions for all bounded solutions of the second order neutral differential equation \[ \big (x(t)-px(t-\tau )\big )^{\prime \prime }- q(t)x\big (\sigma (t)\big )=0 \] to be oscillatory and to improve some existing results. The main results are based on the comparison principles.
Classification : 34C10, 34K11, 34K20, 34K40
Keywords: neutral equation; delayed argument 
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     author = {D\v{z}urina, Jozef},
     title = {On unstable neutral differential equations of the second order},
     journal = {Czechoslovak Mathematical Journal},
     pages = {739--747},
     year = {2002},
     volume = {52},
     number = {4},
     mrnumber = {1940055},
     zbl = {1023.34057},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2002_52_4_a6/}
}
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Džurina, Jozef. On unstable neutral differential equations of the second order. Czechoslovak Mathematical Journal, Tome 52 (2002) no. 4, pp. 739-747. http://geodesic.mathdoc.fr/item/CMJ_2002_52_4_a6/