I briefly review the history of the unfolding approach to model checking. Carl Adam Petri passed away on July 2, 2010. I learnt about his death three days later, a few hours after ...
Short cycle connectivity is a generalization of ordinary connectivity—two vertices have to be connected by a sequence of short cycles, in which two consecutive cycles have at le...
We define a class of finite state automata acting on transfinite sequences, and use these automata to prove that no singular cardinal can be defined by a monadic second order formu...
We discuss the tensions between intensionality and extensionality of spatial observations in distributed systems, showing that there are natural models where extensional observati...
With the growth and acceptance of the Internet, there has been increased interest in maintaining anonymity in the network. Using traffic analysis, it is possible to infer who is t...