Sharp nonlogarithmic Kneser theorems for fourth-order elliptic equations
This paper deals with nonoscillation theorems for linear fourth-order elliptic partial differential equations defined in subregions of \({\mathbb{R}}^ n\). The results obtained here are the best possible for each n, and reduce to well-known classical results if \(n=1\).
linear fourth-order elliptic partial differential equations
scientific article; zbMATH DE number 3935547
scientific article