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JOURNALS // Matematicheskaya Teoriya Igr i Ee Prilozheniya // Archive

Mat. Teor. Igr Pril., 2009 Volume 1, Issue 1, Pages 46–66 (Mi mgta3)

Between the prekernel and the prenucleolus

Ilya Katsev, Elena Yanovskaya

St. Petersburg Institute for Economics and Mathematics RAS, St. Petersburg

Abstract: A collection of $TU$ games solutions intermediate between the prekernel and the prenucleolus is considered. All these solutions are Davis-Maschler consistent, symmetric and covariant. Each solution from the collection is parametrized by a positive integer $k$ such that for all games with the number of players not greater than $k$, the solution for parameter $k$ coincides with the prenucleolus, and for games with more than $k$ players it is maximal, i.e. it satisfies the "$k$-converse consistency". The properties of solutions are described and their characterization in terms of balancedness is given.

Keywords: $TU$ game, prekernel, prenucleolus, consistency.

UDC: 519.833.5
BBK: 210.301



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