Ortrud R. Oellermann is a South African mathematician specializing in graph theory.
Her dissertation was Generalized Connectivity in Graphs and was supervised by Gary Chartrand.
[2] With Gary Chartrand, Oellermann is the author of the book Applied and Algorithmic Graph Theory (McGraw Hill, 1993).
[AA] She is also the author of well-cited research publications on metric dimension of graphs[MD], on distance-based notions of convex hulls in graphs,[CS] and on highly irregular graphs in which every vertex has a neighborhood in which all degrees are distinct.
[6] She won the Meiring Naude Medal of the Royal Society of South Africa in 1994.