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|JIE FANG, Department of Mathematics, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada|
|Ockham algebras with pseudocomplementation|
The variety consists of those algebras of type , where is an Ockham algebra, is a p-algebra, and the unary operations f and commute. We describe the structure of the subdirectly irreducible algebras that belong to the subclass characterised by the property f3=f, and give a description of the lattice of subvarieties of .