Partitions and congruences in algebras. II. Modular and distributive equalities, complements
Partitions and congruences in algebras. III. Commutativity of congruences
Partitions and congruences in algebras. IV. Associable systems
Partitions and partially ordered sets
Perfect compactifications of frames
Perfect compactifications of frames are introduced. It is shown that the Stone-Čech compactification is an example of such a compactification. We also introduce rim-compact frames and for such frames we define its Freudenthal compactification, another example of a perfect compactification. The remainder of a rim-compact frame in its Freudenthal compactification is shown to be zero-dimensional. It is shown that with the assumption of the Boolean Ultrafilter Theorem the Freudenthal compactification...
Perfect Elements in the Free Modular Lattices.
Perfect semilattices.
Permutability, Distributivity of Equivalence Relations and Direct Products
Permutability of congruences in varieties with idempotent operations
Permutability of distributive congruence relations in a joint semilattice directed below
Polarity compatible with a closure system
Polars in autometrized algebras
Polynômes des poids de certains codes et fonctions thêta de certains réseaux
Polynomial Interpolation and the Chinese Remainder Theorem for Algebraic Systems.
Polynomial Interpolation for Locally Equational Classes.
Poproduct decomposition of a lattice
Poproduct of lattices
Poproduct of Lattices and Sorkin's Theorem
Positive eigenvalues and two-letter generalized words.
Power series developments in lattice ordered semigroups.