Zhong, Jinbiao; Fang, Xing; Wang, Hua Study on positive radial solution of boundary value problem for a class of biharmonic equations. (Chinese. English summary) Zbl 1463.35056 J. Hefei Univ. Technol., Nat. Sci. 43, No. 3, 425-428 (2020). Summary: In this paper, the existence of positive radial bounded solutions of boundary value problems for a class of biharmonic equations is proved by using the principle of supremum and infimum and fixed point theorem. Also, a uniqueness theorem for certain systems is obtained. As an application of the theorem, an example is given. MSC: 35B09 Positive solutions to PDEs 35J25 Boundary value problems for second-order elliptic equations Keywords:positive solution; fixed point theorem; fully continuous operator; biharmonic equation PDFBibTeX XMLCite \textit{J. Zhong} et al., J. Hefei Univ. Technol., Nat. Sci. 43, No. 3, 425--428 (2020; Zbl 1463.35056) Full Text: DOI