Properties of Complete Noncompact Warped Product Gradient Yamabe Solitons

Autor: Tokura, Willian Isao, Adriano, Levi, Pina, Romildo, Barboza, Marcelo
Rok vydání: 2019
Předmět:
Druh dokumentu: Working Paper
Popis: In this paper, we look for properties of gradient Yamabe solitons on top of warped product manifolds. Utilizing the maximum principle, we find lower bound estimates for both the potential function of the soliton and the scalar curvature of the warped product. By slightly modifying Li-Yau's technique so that we can handle drifting Laplacians, we were able to find three different gradient estimates for the warping function, one for each sign of the scalar curvature of the fiber manifold. As an application, we exhibit a nonexistence theorem for gradient Yamabe solitons possessing certain metric properties on the base of the warped product.
Databáze: arXiv