Event Detail

Event Type: 
Geometry-Topology Seminar
Monday, January 25, 2021 - 12:00 to 12:50
Zoom. Please contact Christine Escher for a link.

Speaker Info


A semiregular symmetry in a graph is a symmetry which moves all the vertices in cycles of
the same length. The ‘diagram' of such a symmetry has one ’node’ for each cycle and links
joining nodes, one for each orbit of edges joining vertices of those cycles.
We will see wht we can learn about the graph from the diagram, and how to re-construct
the graph from the diagram. We will discuss what makes a diagram ‘good’ and how to find
good diagrams.