The Stanley decomposition of the joint covariants of three quadratics is computed using a new transvectant algorithm and computer algebra. This is sufficient to compute the general form of the normal form with respect to a nilpotent with three 3-dimensional irreducible blocks.	
	
		
		
	
	
	
	
																		
						Keywords:						
												
						joint covariant, quadratic, nilpotent normal form						
						
						
												
						
							
						
						
		
Citation:
	
	Sanders  . A., Stanley Decomposition of the Joint Covariants of Three Quadratics, Regular and Chaotic Dynamics,	
	2007, Volume 12, Number 6,
	 pp. 732-735