You are here

Breaking Bad Symmetries

Gerald Todd*, University Of Montana
Talk Abstract: 
Point-line configurations in the plane can have many types of symmetries. We will investigate bijections of point-line configurations that preserve a certain structure (automorphisms). Of course, to 'break' these symmetries, we can simply fix all points, but we are interested in the fewest number of points that 'break' all non-trivial automorphisms, called the fixing number. We can view these point-line configurations as matroids and get some more general results.
Talk Subject: 
Time Slot: 
Saturday, April 2, 2016 - 14:25
Room Number: 
STAG 161