Directory UMM :Journals:Journal_of_mathematics:EJQTDE:
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Bartuˇsek, Asymptotic properties of oscillatory solutions of differen- tial equations of the nth order.. Kiguradze, Some singular boundary-value problems for ordinary
The above-mentioned propositions strengthen the earlier results on pe- riodic solutions of systems of ordinary differential equations and functional differential equations of
In the qualitative theory of nonlinear partial differential equations, one of the important problems is to determine whether or not solutions of the equation under con- sideration
Electronic Journal of Qualitative Theory of Differential Equations.
Ntouyas , Positive Solutions for Systems of nth Order Three-point Nonlocal Boundary Value Problems, Electronic Journal of Qualitative Theory of Differential Equations , 18 (2007)
Electronic Journal of Qualitative Theory of Differential
Nihari, On the zeros of solutions of second order linear differential equations , Amer. Pachpatte, On Liapunov-type inequalities for certain higher
Liu, et al., Existence of positive solutions for n th-order boundary value problem with sign changing nonlinearity, Electronic Journal of Qualitative Theory of Differential