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Diffusion Reaction Interaction for a Pair of Spheres - ETD ...

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with the substitution <strong>of</strong> (2.20) into (2.18) two simple expressions are obtained,<br />

and<br />

∑ ∞<br />

1 h 1n = + K nmh<br />

, 1m<br />

(2.21)<br />

m=<br />

0<br />

K<br />

nm<br />

=<br />

Λ<br />

γ<br />

1m<br />

d<br />

F<br />

nm<br />

2+<br />

m<br />

1<br />

.<br />

(2.22)<br />

Please note that all h1n and Knm are convergent because the initial series <strong>for</strong> f1n and<br />

F were absolutely convergent. Applying equations (2.15) and (2.20) to equation<br />

(2.17), the probability becomes<br />

h10<br />

P = . (2.23)<br />

d 1+<br />

λ )<br />

1(<br />

1<br />

Equation (2.21) and (2.23) require that all h1n be known. Though direct matrix<br />

inversion can be used to evaluate equations (2.21) it is not recommended because<br />

the inversion techniques used in many computer algorithms can produce<br />

significant error <strong>for</strong> a large non-random matrix. An elimination technique is<br />

employed to avoid this error. Beginning with equation (2.21) <strong>for</strong> n=0<br />

24

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