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Universal Algebra seminarExport this event to calendar

Thursday, April 4, 2013 — 3:30 PM EDT

David McLaughlin, Department of Pure Mathematics, University of Waterloo

"Projective Posets"

A poset is said to be projective if its only idempotent polymorphisms  
are projections. We will try to classify projective posets using  
combinatorial properties. Projective posets of height 1 are completely  
understood. Moreover, we know exactly when posets of height 1 have  
Taylor polymorphisms. We will also discuss known results about posets  
of greater height.

Location 
MC - Mathematics & Computer Building
5046
200 University Avenue West

Waterloo, ON N2L 3G1
Canada

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