Lorna Stewart

Lorna Kay Stewart is a retired Canadian computer scientist and discrete mathematician whose research concerns algorithms in graph theory and special classes of graphs, including cographs, permutation graphs, interval graphs, comparability graphs and their complements, well-covered graphs, and asteroidal triple-free graphs. She earned her Ph.D. in 1985 at the University of Toronto under the supervision of Derek Corneil, and is a professor emerita at the University of Alberta.