The hot spots conjecture on Riemannian manifolds with isothermal coordinates

Abstract: In this paper, we study the hot spots conjecture on Riemannian manifolds with isothermal coordinates and analytic metrics, such as hyperbolic spaces $\mathbb{D}^n$ and spheres $S^n$ for $n\geq 2$. We prove that for some (possibly non-convex) Lipschitz domains in such a Riemannian manifold, which are generalizations of lip domains and symmetric domains with two axes of symmetry in $\mathbb{R}^2$, the hot spot conjecture holds.