Solutions of Nonlinear Polyharmonic Equation with Periodic Potential

Academic Article


  • Quasi-periodic solutions of a nonlinear periodic polyharmonic equation in $\R^n$, $n>1$, are studied. It is proven that there is an extensive "non-resonant" set ${\mathcal G}\subset \R^n$ such that for every $\vec k\in \mathcal G$ there is a solution asymptotically close to a plane wave $Ae^{i\langle{ \vec{k}, \vec{x} }\rangle}$ as $|\vec k|\to \infty $.
  • Keywords

  • math-ph, math-ph, math.MP
  • Author List

  • Karpeshina Y; Kim S