Canonical extensions of lattice expansions: the case of finitely generated varieties
Hilary Priestley

The theory of canonical extensions of (bounded) lattices with additional
operations is now well developed.  This talk will highlight the special,
and very amenable, structure theory that results when the algebras are
drawn from a finitely generated lattice-based variety.  The methods involve 
ideas from topological algebra, duality theory  and universal algebra.  
(A quite different approach using techniques commonly employed in investigating
canonical extensions has led Mai Gehrke and Jacob Vosmaer to some of the
same results.)  By way of illustration I shall show how discriminator
varieties fit into the picture; such varieties play a useful role in the
study of certain substructural logics.