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Characterizations of the u-prenucleolus by dually-u-essential coalitions

Dornai, Zsófia and Pintér, Miklós (2025) Characterizations of the u-prenucleolus by dually-u-essential coalitions. ANNALS OF OPERATIONS RESEARCH, 349. pp. 1575-1607. ISSN 0254-5330

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Abstract

We extend the theory of TU-games with utility functions, which is a generalization of TUgames with restricted cooperation, to include dual games. By using the theory of dual games, we define dually-u-essential coalitions and show that they characterize the u-prenucleolus of u-balanced games. Additionally, we demonstrate that the intersection of u-essential and dually-u-essential coalitions also forms a characterization set for theu-prenucleolus, provided that the u-least-core is a proper subset of the u-core.

Item Type: Article
Uncontrolled Keywords: TU-games , Restricted cooperation , Prenucleolus , Least-core , Characterization set , Dual game , Anti-prenucleolus , TU-games with utility functions
Subjects: Q Science / természettudomány > QA Mathematics / matematika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 15 Sep 2025 11:26
Last Modified: 15 Sep 2025 11:26
URI: https://real.mtak.hu/id/eprint/224266

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