Akrout, K.; Khodja, B. Absence of nontrivial solutions for a class of partial differential equations and systems in unbounded domains. (English) Zbl 1184.35002 Electron. J. Qual. Theory Differ. Equ. 2009, Paper No. 27, 10 p. (2009). Summary: We are interested in the study of the nonexistence of nontrivial solutions for a class of partial differential equations, in unbounded domains. This leads us to extend these results to systems of m equations. The method used is based on energy type identities. MSC: 35A01 Existence problems for PDEs: global existence, local existence, non-existence 35G30 Boundary value problems for nonlinear higher-order PDEs Keywords:differential equations; trivial solution; energy type identities PDFBibTeX XMLCite \textit{K. Akrout} and \textit{B. Khodja}, Electron. J. Qual. Theory Differ. Equ. 2009, Paper No. 27, 10 p. (2009; Zbl 1184.35002) Full Text: DOI EuDML EMIS