Hamiltonian systems of limit point or limit circle type with both endpoints singular

<i>Theory of Ordinary Differential Equations</i>

Earl A. Coddington, Norman Levinson, T. Teichmann · Physics Today · 1956 · 6.2K citations

Spectral Theory, Complex Variable, Function Theory +7

Theory of ordinary differential equations

H.L. Platzer · Journal of the Franklin Institute · 1956 · 5.6K citations

Oscillation Theory, Ordinary Differential Equations, Nonlinear Equation +1

<i>Discrete and Continuous Boundary Problems</i>

F. V. Atkinson, George H. Weiss · Physics Today · 1964 · 818 citations

Free Boundary Problem, Discrete Mathematics, Discrete Structure +1

The Eigenvalue Problem for Ordinary Differential Equations of the Second Order and Heisenberg's Theory of S-Matrices

Kunihiko Kodaira · American Journal of Mathematics · 1949 · 162 citations

On Titchmarsh-Weyl M(λ)-functions for linear Hamiltonian systems

Don Hinton, J. K. Shaw · Journal of Differential Equations · 1981 · 142 citations

Hamiltonian Theory, Linear Hamiltonian Systems, Hamiltonian System