Weighted norm estimates for gradients of half-space extensions Richard WheedenJ. Wilson weighted norm inequalityLittlewood-Paley theoryHaar functionswaveletsPoisson integralBergman space Indiana University Mathematics Journal 1995 text pdf 10.1512/iumj.1995.44.2015 10.1512/iumj.1995.44.2015 en Indiana Univ. Math. J. 44 (1995) 917 - 970 state-of-the-art mathematics http://iumj.org/access/