Weighted inequalities for square and maximal functions in the plane
Volume 102 / 1992
                    
                    
                        Studia Mathematica 102 (1992), 39-47                    
                                        
                        DOI: 10.4064/sm-102-1-39-47                    
                                    
                                                Abstract
We prove weighted inequalities for square functions of Littlewood-Paley type defined from a decomposition of the plane into sectors of lacunary aperture and for the maximal function over a lacunary set of directions. Some applications to multiplier theorems are also given.
 
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            