Let S be a semigroup. In certain cases we give some characterizations of extreme amenability of S and we show that in these cases extreme left amenability and extreme right amenability of S are equivalent. Also when S is a compact topological semigroup, we characterize extremely left amenable subalgebras of C(S), where C(S) is the space of all continuous bounded real valued functions on S

We propose a novel algorithm that allows a small team of robots to fully explore an unknown environment, even in the face of extreme communication restrictions. We verify, through proofs and experiments, that the algorithm will achieve full exploration.

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Engaging and motivating students is always a challenge particularly when teaching subjects that do not have a high practical content. In this situation it was also necessary to present an overview of the subject to be studied while at the same time introduce new members to the existing class. The XP Game is a simple and interactive set of activities that simulates the eXtreme Programming (XP) d...