Jaeseong Oh (오재성) gave a talk on the condition of ribbon graphs sharing the same delta-matroid at the Discrete Math Seminar

On November 3, 2020, Jaeseong Oh (오재성) from Seoul National University presented his work with Iain Moffatt on the characterization of ribbon graphs having the same delta-matroid. The title of his talk is “A 2-isomorphism theorem for delta-matroids“.