The famous Alexandrov-Zeeman theorem proves that causality implies Lorentz group. The physical meaning of this result is that once we observe which event can causally a ect which other events, then, using only this information, we can reconstruct the linear structure of the Minkowski space-time. The original Alexandrov-Zeeman theorem is based on the causality relation between events represented...

Characterising liveness using a structure based approach is a key issue in theory of Petri nets. In this paper, we introduce a structure causality relation from which a topological characterisation of liveness in Petri nets is defined. This characterisation relies on a controllability property of siphons and allows to determine the borders of the largest abstract class of Petri nets for which e...

We used unit root and cointegration techniques to determine the long run relationship between GDP and investment for 90 countries using data from World Bank for the period 1960-1992. In the first step of our analysis we found GDP and investment integrated of different orders for 33 countries. Second step of our analysis shows no cointegration between GDP and investment for 25 countries and coin...

In this paper we analyse linguistic structures, such as “You make me feel angry”, which imply the possibility that a person can cause another person’s affect. We illustrate the concept of “affective causality”, based on an implicit-naïve theory of interpersonal relations linked to common sense. We present two theoretical alternative viewpoints (deriving from psychology and psychotherapy) which ...

We develop a tense logic for reasoning about the occurrences of events in a sub-class of prime event structures called well branching event structures. The well branching property ensures that two events being in connict can always be traced back | via the causality relation | to two events being in minimal connict. Two events are in minimal connict if they are in connict and their \uniied" pas...

To understand narrative, humans draw inferences about the underlying relations between narrative events. Cognitive theories of narrative understanding define these inferences as four different types of causality, that include pairs of events A, B where A physically causes B (X drop, X break), to pairs of events where A causes emotional state B (Y saw X, Y felt fear). Previous work on learning n...

In this paper we use the frequency domain Granger causality test of Breitung/Candelon (2006) to analyse short and long-run causality between energy prices and prices of food commodities. We find that the oil price Granger causes all the considered food prices. However, when controlling for business cycle fluctuations this link exists especially at low frequencies. Thus, short-run phenomena like...