Paley-Type Gap Theorems for H^p-Functions on the Ball Patrick AhernWalter Rudin Indiana University Mathematics Journal 1988 text pdf 10.1512/iumj.1988.37.37013 10.1512/iumj.1988.37.37013 en Indiana Univ. Math. J. 37 (1988) 255 - 275 state-of-the-art mathematics http://iumj.org/access/