One of the classical problems concerning the peg solitaire game is the feasibility issue. Tools used to show the infeasibility of various peg games include valid inequalities, know...
It is shown that the Hilbert series of the face ring of a clique complex (equivalently, flag complex) of a graph G is, up to a factor, just a specialization of SG (x, y), the subg...
Event-based systems are developed and used as a coordination model to integrate components in loosely coupled systems. Research and product development focused so far on efficienc...
Previous research has identified many characteristics of social networks that can support creative collaboration. To examine the possibilities and issues involved, we created a co...
This paper describes an ongoing implementation of an open source library dealing with parametric representation of dynamic geometry constructions. We show how some current issues i...