TY - JOUR T1 - Solutions of Elliptic Equations ΔU+K(x)e2u=f(x) AU - Pan Xiugbin JO - Journal of Partial Differential Equations VL - 2 SP - 36 EP - 44 PY - 1991 DA - 1991/04 SN - 4 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jpde/5766.html KW - elliptic equations KW - prescribed curvature problem KW - monotone operators KW - Kato's inequality AB - In this paper we consider the elliptic equation Δu + K(x)e^{2u} = f(x), which arises from prescribed curvature problem in Riemannian geometry. It is proved that if K(x) is negative and continuous in R², then for any f ∈ L²_{loc} (R²) such that f(x) ≤ K(x), the equation possesses a positive solution. A uniqueness theorem is also given.