Counting delta-matroids

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• Steve Noble, Birkbeck, University of London
• Thursday 15 November 2018, 15:00-16:00
• Watson LTB.

If you have a question about this talk, please contact Johannes Carmesin.

Delta-matroids were introduced by Bouchet in the late 1980s but, until recently, have not been studied a great deal since. Examples of them arise from ribbon graphs and matrices, in much the same way as matroids arise from graphs and matrices. In this talk we will give a gentle introduction to delta-matroids illustrated by their connections with ribbon graphs. We will also describe joint work with Daryl Funk and Dillon Mayhew giving bounds on the number of labelled delta-matroids. (There will not be too much matroid theory!)

This talk is part of the Combinatorics and Probability seminar series.

This talk is included in these lists:

• Combinatorics and Probability seminar
• School of Mathematics events
• Watson LTB

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