Is the Neumann Series Always Effective for Solving Integral Equations?

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Let be the integral equation:

\int_{a}^{b}dyK(x,y)f(y)=g(x)where f is unknown and g is known, then i use a resolvent Kernel in the form:

\int_{a}^{b}dyR(x,y)g(y)=f(x) where we obtain the Kernel R by:

R=\sum_{n=0}^{\infty}b_{n}(K-I)^{n} the last is Neumann series for the Kernel operator R..is my approach always true?..thanks.
 
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Yes, that will work. It's a bit tedious in some cases.
 

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