On nonlinear biharmonic problems on the Heisenberg groupZuo, Jiabin (Avtor) Taarabti, Said (Avtor) An, Tianqing (Avtor) Repovš, Dušan (Avtor) Heisenberg group $\mathbb{H}^n$bi-Kohn LaplacianMountain Pass Theoremvariational theoryWe investigate the boundary value problem for biharmonic operators on the Heisenberg group. The inherent features of ▫$\mathbb{H}^n$▫ make it an appropriate environment for studying symmetry rules and the interaction of analysis and geometry with manifolds. The goal of this paper is to prove that a weak solution for a biharmonic operator on the Heisenberg group exists. Our key tools are a version of the Mountain Pass Theorem and the classical variational theory. This paper will be of interest to researchers who are working on biharmonic operators on ▫$\mathbb{H}^n$▫.20222022-04-07 10:22:09Članek v reviji136024UDK: 517.951.6ISSN pri članku: 2073-8994DOI: 10.3390/sym14040705COBISS_ID: 103836675sl