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Multiagent Systems

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Prof. Dr. Jürgen Dix · Department of Informatics, TUC <strong>Multiagent</strong> <strong>Systems</strong>, WS 06/07 385/731<br />

5. Nets and coalitions 3. Coalition Formation<br />

Proof.<br />

There are at most |A| coalitions included in CS ∗ .<br />

Thus<br />

Val(CS<br />

∗ ) ≤ |A| max<br />

S<br />

v S ≤ |A| max Val(CS<br />

CS) = |A|Val(CS<br />

N ∗ )<br />

CS∈N<br />

Number of coalitions at the second lowest level:<br />

2 A − 2.<br />

Number of coalition structures at the second<br />

lowest level: 1 2 (2A − 2) = 2 A−1 − 1.<br />

Thus the number of nodes visited is: 2 A−1 .

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