A Note on Discrete Einstein Metrics

A Note on Discrete Einstein Metrics

Year:    2019

Author:    Huabin Ge, Jinlong Mei, Da Zhou

Journal of Mathematical Study, Vol. 52 (2019), Iss. 2 : pp. 160–168

Abstract

In this note, we prove that the space of all admissible piecewise linear metrics parameterized by the square of length on a triangulated manifold is a convex cone. We further study Regge’s Einstein-Hilbert action and give a more reasonable definition of discrete Einstein metric than the former version. Finally, we introduce a discrete Ricci flow for three dimensional triangulated manifolds, which is closely related to the existence of discrete Einstein metrics.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jms.v52n2.19.03

Journal of Mathematical Study, Vol. 52 (2019), Iss. 2 : pp. 160–168

Published online:    2019-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    9

Keywords:    Discrete Einstein metric Discrete Ricci flow.

Author Details

Huabin Ge

Jinlong Mei

Da Zhou