Lacunary series on compact groups
Volume 86 / 2000
                    
                    
                        Colloquium Mathematicum 86 (2000), 1-7                    
                                        
                        DOI: 10.4064/cm-86-1-1-7                    
                                    
                                                Abstract
A theorem of Sidon concerning absolutely convergent Fourier series is extended to compact groups.