Measuring Mass via Coordinate Cubes
Measuring Mass via Coordinate Cubes
复制标题
通过坐标立方体测量质量
DOI:
10.1007/s00220-020-03811-3
复制
发表时间:
2020
影响因子:
2.4
通讯作者:
Miao, Pengzi
中科院分区:
文献类型:
--
作者:
Miao, Pengzi
Inspired by a formula of Stern that relates scalar curvature to harmonic functions, we evaluate the mass of an asymptotically flat 3-manifold along faces and edges of a large coordinate cube. In terms of the mean curvature and dihedral angle, the resulting mass formula relates to Gromov’s scalar curvature comparison theory for cubic Riemannian polyhedra. In terms of the geodesic curvature and turning angle of slicing curves, the formula realizes the mass as integration of the angle defect detected by the boundary term in the Gauss–Bonnet theorem.
影响因子:
2.5
作者:
A. Carlotto;Camillo De Lellis
通讯作者:
Camillo De Lellis