15 citations · 23 across the 3 of their papers we have counts for
3 papers
Epimorphisms in varieties of subidempotent residuated structures
T. Moraschini, J. G. Raftery, J. J. Wannenburg
A commutative residuated lattice A is said to be subidempotent if the lower bounds of its neutral element e are idempotent (in which case they naturally constitute a Brouwerian alg…
Varieties of De Morgan monoids: covers of atoms
T. Moraschini, J. G. Raftery, J. J. Wannenburg
The variety DMM of De Morgan monoids has just four minimal subvarieties. The join-irreducible covers of these atoms in the subvariety lattice of DMM are investigated. One of the tw…
Varieties of De Morgan monoids: minimality and irreducible algebras
T. Moraschini, J. G. Raftery, J. J. Wannenburg
It is proved that every finitely subdirectly irreducible De Morgan monoid A (with neutral element e) is either (i) a Sugihara chain in which e covers not(e) or (ii) the union of an…