The work we present in this article initiated the formal study of fractional hedonic games
(FHGs), coalition formation games in which the utility of a player is the average value he …

We consider fractional hedonic games, a subclass of coalition formation games that can be
succinctly modeled by means of a graph in which nodes represent agents and edge weights …

In coalition formation games self-organized coalitions are created as a result of the strategic
interactions of independent agents. In this paper we assume that for each couple of agents …

Hedonic diversity games are a variant of the classical hedonic games designed to better
model a variety of questions concerning diversity and fairness. Previous works mainly …

The core is a well-known and fundamental notion of stability in games intended to model
coalition formation such as hedonic games. The fact that the number of deviating agents …

Additively separable hedonic games and fractional hedonic games have received
considerable attention in the literature. They are coalition formation games among selfish …

Local Core Stability in Simple Symmetric Fractional Hedonic Games Page 1 Local Core
Stability in Simple Symmetric Fractional Hedonic Games Raffaello Carosi Gran Sasso …

Coalition formation is a central problem in multi-agent systems and has been extensively
studied, ever since the publication of von Neumann and Morgenstern's Theory of Games …

We consider the online version of the coalition structure generation problem, in which
agents, corresponding to the vertices of a graph, appear in an online fashion and have to be …

Abstract The Price of Anarchy measures the welfare loss caused by selfish behavior: it is
defined as the ratio of the social welfare in a socially optimal outcome and in a worst Nash …