Relatively cheap and widely available wireless data communication services are available to the mass-market. Within the coverage of the cellular network used, the vision of information access for ‘everyone, anytime, anywhere’ has become reality. A Global Information Visualization environment can be imagined where the vision of ‘All information at your fingertip’ is reality. In this environment,...

Security Games: Solution Concepts and Algorithms

In this note we investigate the stability of game theoretic and economic solution concepts under input perturbations. The existence of many of these solutions is proved using fixed point theorems. We note that fixed point theorems, in general, do not provide stable solutions, and we show how some commonly studied solution concepts are indeed not stable under perturbation of the inputs.

A road pricing game is a game where various stakeholders and/or regions with different (and usually conflicting) objectives compete for toll setting in a given transportation network to satisfy their individual objectives. We investigate some classical game theoretical solution concepts for the road pricing game. We establish results for the road pricing game so that stakeholders and/or regions...

The parallelization of numerical codes on unstructured grids still is a demanding programming task, which is often performed in an application-speciic manner. However, many of the algorithms used in this eld exhibit strong structural similarities. A concept exploiting the latter is developed in this paper. Furthermore, it will be shown how the abstract concepts can be implemented in a reusable ...

In situations of strategic interaction it is important for agents to consider not only what their rivals will do, but also what they know, what they know about what they know, and so on. Formal models of knowledge have been developed to help us keep track of these levels of knowledge. This paper provides a non-technical introduction to one of these models, and investigates its foundations. It i...

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The recent interest in hybrid systems has given rise to a large variety of model classes and to many different notions of solution trajectories. In this paper we enumerate several solution concepts and compare them on the basis of some examples displaying Zeno behaviour. The relation to well-posedness is also discussed.