- 
							
								Jiemeng Zhang
							
              						
 
											- 
							
								Zhixiong Wen
							
              						
 
											- 
							
								Wen Wu
							
              						
 
									
			
																												
							
									
				
										Keywords:
				
				
																		Infinite Fibonacci sequence, 													Singular words, 													Fibonacci number, 													Digit sum															
			
			
										
					
Abstract
					The infinite Fibonacci sequence $\mathbf{F}$, which is an extension of the classic Fibonacci sequence to the infinite alphabet $\mathbb{N}$, is the fixed point of the morphism $\phi$: $(2i)\mapsto (2i)(2i+1)$ and $(2i+1)\mapsto (2i+2)$ for all $i\in\mathbb{N}$. In this paper, we study the growth order and digit sum of $\mathbf{F}$ and give several decompositions of $\mathbf{F}$ using singular words.
				
			
			
																																																																
					
													Author Biographies
											
																		
								
																																							Jiemeng Zhang, Wuhan Institute of Technology
																	
								
									PhD in Math.
Lecuturer, Wuhan institute of Technology
								 
							 
																								
								
																																							Zhixiong Wen, Huazhong University of Science and Technology
																	
								
									Professor in Mathematics,
Huazhong University of Science and Technology
								 
							 
																								
								
																																							Wen Wu, South China University of Technology
																	
								
									PhD in Math.
Lecturer, School of Mathematics, South China University of Technology