摘要: In this paper, the module coradical is introduced. From this, we show that any Hopf module coalgebra which is local finite can be uniquely decomposed into a direct sum of its indecomposable components. This result is a generalization of the decompostion theorem of coalgebra. 
                                                        
                              
                             
                            
                            																								
								
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                                        															 焦争鸣, 王栓宏, 赵文正 . On the Decomposition of Hopf Module Coalgebra[J]. 数学季刊, 1998, 13(2): 36-40.	
																																									     												                                                                                                        	                                                                                                                       Jiao Zhengming, Wang Shuanhong, Zhao Wenzheng. On the Decomposition of Hopf Module Coalgebra[J]. Chinese Quarterly Journal of Mathematics, 1998, 13(2): 36-40.