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Introduction to the AdS/CFT correspondence

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10/22<br />

Partition functions. 4.<br />

<br />

<br />

In <strong>the</strong> limit z Ñ 0 <strong>the</strong> equation becomes<br />

homogeneous in z:<br />

z Ñ 0 : f 11 1 ¡ d<br />

z<br />

f 1 ¡ pmRq2 f 0.<br />

z 2<br />

Therefore <strong>the</strong> solution is a power function<br />

f z ∆<br />

Plugging <strong>the</strong> ansatz in<strong>to</strong> <strong>the</strong> equation and<br />

solving for ∆, one obtains<br />

dd 2<br />

Ƭ d 2<br />

¨<br />

4<br />

pmRq 2 .

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