摘要: In the paper, we introduce Bessel sets in a Hilbert space H, and give an equivalent condition that two Generalized Frames are duals to each other.
                                                        
                              
                             
                            
                            																								
								
																中图分类号: 
																 
								
								
																                            
                            
                                
                                    
                                
                                
                                    
                                        															姚喜研. 两个广义框架互为对偶的新刻画[J]. 数学季刊, 2004, 19(4): 350-354.	
																																									     												                                                                                                        	                                                                                                                      YAO Xi-yan. New Characterization of Two Generalized Frames are Duals to Each Other[J]. Chinese Quarterly Journal of Mathematics, 2004, 19(4): 350-354.