Stationary level surfaces and Liouville-type theorems characterizing hyperplanes
专题命中 可控生成 :diffusion(abstract)
Comments In this revised version the condition that ${|f(x)|/(1+|x|) : x \in \mathbb R^N}$ is bounded (in the previous version) was replaced with the stronger condition that ${|f(x)-f(y)| : |x-y| \le 1}$ is bounded, since the previous condition is not enough to guarantee the existence of the limits $f_\infty$ and $g_\infty$ in the proof of Theorem 1.3