1808.03925Aug 12, 201822 pages, The definition of scalar curvature in the previous version has a wrong sign as usual. The definition and related mistakes are corrected; Some results about radial singular kähler metrics with negative constant scalar curvature is also discussed
Rotation invariant singular Kähler metrics with constant scalar curvature on Cn
Weiyong He, Jun Li
Abstract
The scalar curvature equation for rotation invariant Kähler metrics on Cn\{0} is reduced to a system of ODEs of order 2. By solving the ODEs, we obtain complete lists of rotation invariant zero or positive csck on Cn\{0} in lower dimensions. We also prove that there does not exist negative csck on Cn\{0}