Exploiting a multiply warped product manifold scheme, we study the interior solutions of the Banados-Teitelboim-Zanelli black holes and the exterior solutions of the de Sitter black holes in the (2+1) dimensions.
@article{arxiv.gr-qc/0209058,
title = {(2+1) dimensional black holes in warped product scheme},
author = {Soon-Tae Hong and Jaedong Choi and Young-Jai Park},
journal= {arXiv preprint arXiv:gr-qc/0209058},
year = {2007}
}