In this short note, we consider gradient estimates for positive solutions tothe following nonlinear elliptic equation on a complete Riemannian manifold:$$\Delta u+cu^{\alpha}=0,$$ where $c, \alpha$ are two real constants and $c\neq0$.
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机译：在此简短说明中，我们考虑在完整的黎曼流形上，以下非线性椭圆方程的正解的梯度估计：$$ \ Delta u + cu ^ {\ alpha} = 0，$$其中$ c，\ alpha $是两个实数常数和$ c \ neq0 $。
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