Discrete CATS Seminar

Date: 
03/05/2018 - 2:00pm
Location: 
745 Patterson Office Tower
Speaker(s) / Presenter(s): 
Gabor Hetyei, UNC Charlotte

Speaker:  Gabor Hetyei UNC Charlotte

Title:  Partitions of a fixed genus have an algebraic generating function

Abstract:

We show that, for any fixed genus g, the ordinary generating function for the genus g partitions of an n-element set into k blocks is algebraic. The proof involves showing that each such partition may be reduced in a unique way to a primitive partition and that the number of primitive partitions of a given genus is finite. We illustrate our method by finding the generating function for genus 2 partitions, after identifying all genus 2 primitive partitions, using a computer-assisted search. This is joint work with Robert Cori.

For more details, see Discrete CATS website
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