Weighted Inequalities for Commutators of Rough Singular Integrals Steve Hofmann Indiana University Mathematics Journal 1990 text pdf 10.1512/iumj.1990.39.39057 10.1512/iumj.1990.39.39057 en Indiana Univ. Math. J. 39 (1990) 1275 - 1304 state-of-the-art mathematics http://iumj.org/access/