
doi: 10.1137/1015002
The maximum principle and the general theory of differential inequalities are used to obtain elementary estimates for solutions of second order ordinary differential equations. These estimates are ...
Linear ordinary differential equations and systems, Singular perturbations for ordinary differential equations, Differential inequalities involving functions of a single real variable, Singular perturbations, turning point theory, WKB methods for ordinary differential equations
Linear ordinary differential equations and systems, Singular perturbations for ordinary differential equations, Differential inequalities involving functions of a single real variable, Singular perturbations, turning point theory, WKB methods for ordinary differential equations
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