An example of Lichnerowicz-type Laplacian
An example of Lichnerowicz-type Laplacian
复制标题
Lichnerowicz 型拉普拉斯算子的示例
DOI:
--
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
S. Stepanov
中科院分区:
文献类型:
--
作者:
J. Mikeš;V. Rovenski;S. Stepanov
We consider the Sampson Laplacian acting on covariant symmetric tensors on a Riemannian manifold. This operator is an example of the Lichnerowicz-type Laplacian. It is of fundamental importance in mathematical physics and appears in many problems in Riemannian geometry including the theories of infinitesimal Einstein deformations, the stability of Einstein manifolds and the Ricci flow. We study the Sampson Laplacian using the analytical method, due to Bochner, of proving vanishing theorems for the null space of a Laplace operator admitting Weitzenböck decomposition and further of estimating its lowest eigenvalue. In addition, we also survey a series of results that we obtained earlier.