On restrictions of multipliers in weighted settings Earl BerksonT.A. Gillespie 42A4546E30A_p weightweighted L^p spacemultiplierq-variationsquare function Indiana University Mathematics Journal 2003 text pdf 10.1512/iumj.2003.52.2368 10.1512/iumj.2003.52.2368 en Indiana Univ. Math. J. 52 (2003) 927 - 962 state-of-the-art mathematics http://iumj.org/access/