Now showing items 1-3 of 3
Positive solutions to singular initial value problems with sign changing nonlinearities
(Elsevier BV, 1998-08-01)
Multiple solutions for the dirichlet second-order boundary value problem of nonsingular type
(Elsevier BV, 1999-04-01)
Singular differential equations with linear and nonlinear boundary conditions
(Elsevier BV, 1998-02-01)
Existence results are established for the singular equation y " + f(t, y) = 0, where f is not a Caratheodory function. Our nonlinearity f is allowed to change sign.