Categories of orthomodular posets
Center of a bounded lattice
Characterizations of 0-distributive posets
The concept of a 0-distributive poset is introduced. It is shown that a section semicomplemented poset is distributive if and only if it is 0-distributive. It is also proved that every pseudocomplemented poset is 0-distributive. Further, 0-distributive posets are characterized in terms of their ideal lattices.
Classes équationnelles de treillis orthomodulaires liées aux états
Commutative semigroups whose lattice of tolerances is Boolean
Compatibility and central elements in pseudo-effect algebras
An equivalent definition of compatibility in pseudo-effect algebras is given, and its relationships with central elements are investigated. Furthermore, pseudo-MV-algebras are characterized among pseudo-effect algebras by means of compatibility.
Compatibility and partial compatibility in quantum logics
Compatibility in orthomodular posets
Compatibility problem in quasi-orthocomplemented posets
Complements in the lattice of all topologies of topological groups
Complements in the lattice of uniformities
Complete co-atomic lattices with enough primes.
Compressible groups
Congruence kernels of orthoimplication algebras.
Congruences and ideals in lattice effect algebras as basic algebras
Effect basic algebras (which correspond to lattice ordered effect algebras) are studied. Their ideals are characterized (in the language of basic algebras) and one-to-one correspondence between ideals and congruences is shown. Conditions under which the quotients are OMLs or MV-algebras are found.
Congruences and isotone maps on partially ordered sets.
Continuity and linear extensions of quantum measures on Jordan operator algebras.
Control and separating points of modular functions