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A note on the qualitative behaviour of some second order nonlinear differential equations. (English) Zbl 1039.34030
The authors find sufficiently conditions for the existence of bounded and $$L_2$$-solutions of the ordinary differential equation $(p(t)x')'+ f(t, x)x'+ g(b, x)= e(t).$

##### MSC:
 34C11 Growth and boundedness of solutions to ordinary differential equations
##### Keywords:
bounded solution; $$L_2$$-solution
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