content_image/319578.jpg content_image/319579.jpg content_image/319577.jpg
and T 2 jj = 

For every vector h and s = 1 , 2 

<img src='content_image/319578.jpg'>

<img src='content_image/319579.jpg'>

It follows by substituting into T 2 jj and expanding ψ$_{s}$ that T 2 jj = − Eψ$_{1}$ ( x ) Eψ$_{2}$ ( x )+ ¯ hR$_{2}$. 

Similarly, 

<img src='content_image/319577.jpg'>

where after the change of variable ψ$_{s}$ ( x$_{j}$ − hw ) is expanded around the point x$_{j}$. Next we establish that | R$_{1}$ | < ∞ , | R$_{2}$ | < ∞ . 

