Security is a fundamental precondition for the acceptance of mobile agent systems. In this paper we discuss protocols to improve agent security by distributing critical data and operations on mutually supporting agents which migrate in disjunct host domains. In order to attack agents, hosts must collude/conspire across domains. Proper selection of itineraries can minimize the risk of such coali...

In this paper we prove the existence of uncountably many indecomposable continua in the dynamics of complex exponentials of the form Eλ(z) = λe z with λ > 1/e. These continua contain points that share the same itinerary under iteration of Eλ. These itineraries are bounded but consist of blocks of 0’s whose lengths increase, and hence these continua are never periodic.

Conservation agriculture practices, such as reduced tillage and the incorporation of cover crops, play a crucial role in improving sustainability organic farming systems. The aim this two-year field trial was to evaluate five different technical itineraries (ST, IN1, IN2, M1, M2) which differed on soil management practices adopted before processing tomato transplantation regarding weed control ...

In this paper we will discuss the application of (Segmented) Discourse Representation Theory and the Generative Lexicon to the analysis of a historical French corpus of itineraries in the Pyrénées. Our research will focus in particular on how type coercion (Pustejovsky, 1995) can help us give a correct analysis of cases of so-called “fictive motion” (Talmy, 1999), which is evident is phrases like.

We consider efficient algorithms for exact time-table queries, i.e. algorithms that find optimal itineraries for travelers using a train system. We propose to use timedependent networks as a model and show advantages of this approach over spacetime networks as models.