Eigenvalue estimates for submanifolds in Hadamard manifolds and product manifolds $N\times \mathbb{R}$

Jing Mao, Rong-Qiang Tu, Kai Zeng

In this paper, we investigate submanifolds with locally bounded mean curvature in Hadamard manifolds, product manifolds $N\times \mathbb{R}$, submanifolds with bounded $\phi$-mean curv…