Multi-parameter symmetries of first order ordinary differential equations.
Multiple critical points for variational problems on partially ordered Hilbert spaces
Multiple global bifurcation branches for nonlinear Picard problems.
Multiple nodal solutions for some fourth-order boundary value problems via admissible invariant sets.
Multiple nonnegative solutions for BVPs of fourth-order difference equations.
Multiple nonnegative solutions for second-order boundary-value problems with sign-changing nonlinearities.
Multiple periodic solutions for a class of second-order nonlinear neutral delay equations.
Multiple periodic solutions for Hamiltonian systems with singular potential
In this Note we prove the existence of infinitely many periodic solutions of prescribed period for a Hamiltonian system with a singular potential.
Multiple periodic solutions of some forced hamiltonian systems and the generalized saddle point theorem.
Multiple periodic solutions to a class of second-order nonlinear mixed-type functional differential equations.
Multiple periodic solutions to a suspension bridge O. D. E.
Multiple Picard's method for the Stiff nonlinear two-point boundary value problems
Multiple positive periodic solutions for delay differential system.
Multiple positive periodic solutions to a non-autonomous Lotka-Volterra predator-prey system with harvesting terms.
Multiple positive solutions for a class of -point boundary value problems on time scales.
Multiple positive solutions for a class of nonresonant singular boundary-value problems.
Multiple positive solutions for a nonlinear 2n-th order m-point boundary value problems.
Multiple positive solutions for a nonlinear -th order three-point boundary-value problem.
Multiple positive solutions for a nonlocal boundary-value problem with response function quiet at zero.
Multiple positive solutions for a second order delay boundary value problem on the half-line
Second order nonlinear delay differential equations are considered, and Krasnosel'skiĭ's fixed point theorem is used to establish a result on the existence of positive solutions of a boundary value problem on the half-line. This result can be used to guarantee the existence of multiple positive solutions. A specification of the result obtained to the case of second order nonlinear ordinary differential equations as well as to a particular case of second order nonlinear delay differential equations...