This course is available on the MSc in Applicable Mathematics and MSc in Operations Research & Analytics. This course is available as an outside option to students on other programmes where ...

Applicable Analysis and Discrete Mathematics, Vol. 7, No. 2 (October 2013), pp. 262-274 (13 pages) A map f : V → {0, 1, 2} is a Roman dominating function for G if for every vertex v with f(v) = 0, ...

We show that the groupoids of two directed graphs are isomorphic if and only if the two graphs are orbit equivalent by an orbit equivalence that preserves isolated eventually periodic points. We also ...