@inproceedings{edward1999connectedness,
title={Connectedness of the boundary in the AdS/CFT correspondence},
author={Edward Witten, and Shing-Tung Yau},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203601265322056},
booktitle={arXiv preprint hep-th/9910245},
year={1999},
}
Edward Witten, and Shing-Tung Yau. Connectedness of the boundary in the AdS/CFT correspondence. 1999. In arXiv preprint hep-th/9910245. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203601265322056.