Tuesday, April 4, 2017 3:00 pm
-
3:00 pm
EDT (GMT -04:00)
Jonny Stephenson, Department of Pure Mathematics, University of Waterloo
"Co-spectra"
The co-spectrum of a structure is the family of sets coded by the structure. This is a measure of how well we can encode information in the structure. We will see that every countable ideal in the e-degrees is the co-spectrum of a structure, and give a generalization of Richter's result on c.e.-minimal pairs.
MC 5403