Abstract. Persistent Topology studies topological features of shapes by analyzing the lower level sets of suitable functions, called filtering functions, and encoding the arising i...
The group Steiner problem is a classical network design problem where we are given a graph and a collection of groups of vertices, and want to build a min-cost subgraph that conne...
A generalization of the Davenport constant is investigated. For a finite abelian group G and a positive integer k, let Dk(G) denote the smallest such that each sequence over G of l...
: Problem oriented project pedagogy is an alternative educational approach which often provides a strong natural motivation for the students' work. On the other hand, it requi...
The story describes a world of the future in which there are two entirely different groups of people, one involved in the development and reproduction of the industrial base of the...