We present the newly emerging research field of Computer Supported Collaborative Sports (CSCS). By applying innovative input and output technologies, it enables players to experience sportive activities in a shared computerized environment. Important dimensions in the design space of CSCS applications are discussed. Finally we present the FlyGuy, a prototypical realization of a CSCS device.

We consider discrete memoryless channels with input alphabet size n and output alphabet size m, where m = ⌈γn⌉ for some constant γ > 0. The channel transition matrix consists of entries that, before being normalized, are independent and identically distributed nonnegative random variables V and such that E [ (V logV ) ] < ∞. We prove that in the limit as n → ∞ the capacity of such a channel con...

We consider the problem of characterizing possible supply functions for a given dissipative nonlinear system, and provide a result that allows some freedom in the modification of such functions. Keywords— nonlinear stability, ISS, dissipation, input/output stability

The main objective of this article is to give a survey on elementary functions in the context of quaternionic analysis. We define some of their more common properties, which as in the real and complex cases, will be familiar to the reader. This leads to the consideration of quaternion-valued functions depending on a quaternion variable, that is, functions whose input and output are quaternions....

The HERA-B application software modules are house by the frame program Arte. To use Arte in the online environment of the farm, input and output streams have to be buffered and interfaced. This note describes a concept for implementation of the frame program Arte and the I/O modules in the multi-process environment of the farm.