Cooperative games are mathematical models that can be used to analyze the interaction among agents who can obtain benefits by cooperating. This book mainly deals with cooperative games which arise from combinatorial optimization problems on weighted graphs. These problems take place in the presence of a group of agents, each of whom needs to be connected directly or via other agents to a source and the connections among agents are costly. The goal of this book is to analyze allocation methods which can also keep incentives for cooperation under modifications in the structure of the graph, as...

Supersymmetry (SUSY) is one of the most important ideas ever conceived in particle physics. It is a symmetry that relates known elementary particles of a certain spin to as yet undiscovered particles that differ by half a unit of that spin (known as Superparticles). Supersymmetric models now stand as the most promising candidates for a unified theory beyond the Standard Model (SM).

SUSY is an elegant and simple theory, but its existence lacks direct proof. Instead of dismissing supersymmetry altogether, Supersymmetry Beyond Minimality: from Theory to Experiment...