We study initial and boundary value problems for ordinary fourth-order quasilinear equations. We discuss existence and uniqueness of the solution of the initial value problem, and simplicity, positivity and discreteness of spectra of the boundary value problems.
We study initial and boundary value problems for ordinary fourth-order quasilinear equations. We discuss existence and uniqueness of the solution of the initial value problem, and simplicity, positivity and discreteness of spectra of the boundary value problems. (en)