Conformal deformation of a Riemannian metric to a constant scalar curvature metric with constant mean curvature on the boundary Jose Escobar Indiana University Mathematics Journal 1996 text pdf 10.1512/iumj.1996.45.1344 10.1512/iumj.1996.45.1344 en Indiana Univ. Math. J. 45 (1996) 917 - 944 state-of-the-art mathematics http://iumj.org/access/