Biorthogonal wavelets, MRA's and shift-invariant spaces
Volume 160 / 2004
                    
                    
                        Studia Mathematica 160 (2004), 231-248                    
                                        
                        MSC: Primary 42C40.                    
                                        
                        DOI: 10.4064/sm160-3-3                    
                                    
                                                Abstract
We give a characterization of biorthogonal wavelets arising from MRA's of multiplicity $D$ entirely in terms of the dimension function. This improves the previous characterization in [8] removing an unnecessary angle condition. Besides we characterize Riesz wavelets arising from MRA's, and present new proofs based on shift-invariant space theory, generalizing the 1-dimensional results appearing in [17].
 
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            