On rectifiable oscillation of Euler type second order linear differential equations.
Existence theorems for second order multi-point boundary value problems.
On common fixed and periodic points
An optimal existence theorem for positive solutions of a four-point boundary value problem.
Some remarks on three-point and four-point bvp's for second-order nonlinear differential equations.
The shooting method and nonhomogeneous multipoint bvps of second-order ODE.
Higher order multi-point boundary value problems with sign-changing nonlinearities and nonhomogeneous boundary conditions.
Boundedness Theorems for Certain General Second Order Non-linear Differential Equations.
On a Characterization of Fourier Transforms.
On the Limit Point Classification of Second Order Differential Equations.
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