Lecture 25 . Enumerative Combinatorics (Federico Ardila)
Автор: Federico Ardila
Загружено: 2013-12-05
Просмотров: 1992
Описание:
We discuss the Möbius function and Möbius inversion for Boolean posets, divisor posets, distributive lattices, and partition lattices. We prove Phillip Hall's formula for the Möbius function in terms of chain enumeration.
Lecture notes at: http://math.sfsu.edu/federico/ec.html
San Francisco State University (San Francisco, USA)
Universidad de Los Andes (Bogota, Colombia)
Partially supported by:
US National Science Foundation CAREER Award DMS-0956178
US National Science Foundation Grant DMS-0801075
SFSU-Colombia Combinatorics Initiative.
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