Atomic Correspondences C. Anantharaman-Delaro Indiana University Mathematics Journal 1993 text pdf 10.1512/iumj.1993.42.42023 10.1512/iumj.1993.42.42023 en Indiana Univ. Math. J. 42 (1993) 505 - 531 state-of-the-art mathematics http://iumj.org/access/