,Logarithmic Gradient Estimates to Hessian-Type Equations

• 机 构: Department of Mathematics, University of Science and Technology of China, Hefei230026, China.
• 出 处: 偏微分方程(英文版)
• 发表日期: 2010年4期
• 关键词: Elementary symmetric function logarithmic gradient estimate

We study logarithmic gradient estimate to smooth admissible solutions of the Hessian-type equations on Sn. The equations contain a Monge-Ampere equation arising in designing a reflecting surface in geometric optics as a special case.