Graham-Witten's Conformal Invariant for Closed Four Dimensional Submanifolds

Graham-Witten's Conformal Invariant for Closed Four Dimensional Submanifolds

Year:    2021

Author:    Yongbing Zhang

Journal of Mathematical Study, Vol. 54 (2021), Iss. 2 : pp. 200–226

Abstract

It was proved by Graham and Witten in 1999 that conformal invariants of submanifolds can be obtained via volume renormalization of  minimal surfaces in conformally compact Einstein manifolds. The conformal invariant of a submanifold $\Sigma$ is contained in the volume expansion of the minimal surface which is asymptotic to $\Sigma$ when the minimal surface approaches the conformaly infinity. In the paper we give the explicit expression of Graham-Witten's conformal invariant for closed four dimensional submanifolds and find critical points of the conformal invariant in the case of Euclidean ambient spaces.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jms.v54n2.21.06

Journal of Mathematical Study, Vol. 54 (2021), Iss. 2 : pp. 200–226

Published online:    2021-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    27

Keywords:    Minimal surface AdS/CFT conformal invariant.

Author Details

Yongbing Zhang

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