Displaying 81 – 100 of 226

Showing per page

On lattice-ordered monoids

Milan Jasem (2003)

Discussiones Mathematicae - General Algebra and Applications

In the paper lattice-ordered monoids and specially normal lattice-ordered monoids which are a generalization of dually residuated lattice-ordered semigroups are investigated. Normal lattice-ordered monoids are metricless normal lattice-ordered autometrized algebras. It is proved that in any lattice-ordered monoid A, a ∈ A and na ≥ 0 for some positive integer n imply a ≥ 0. A necessary and sufficient condition is found for a lattice-ordered monoid A, such that the set I of all invertible elements...

On maximal ideals of pseudo-BCK-algebras

Andrzej Walendziak (2011)

Discussiones Mathematicae - General Algebra and Applications

We investigate maximal ideals of pseudo-BCK-algebras and give some characterizations of them.

On minimal spectrum of multiplication lattice modules

Sachin Ballal, Vilas Kharat (2019)

Mathematica Bohemica

We study the minimal prime elements of multiplication lattice module M over a C -lattice L . Moreover, we topologize the spectrum π ( M ) of minimal prime elements of M and study several properties of it. The compactness of π ( M ) is characterized in several ways. Also, we investigate the interplay between the topological properties of π ( M ) and algebraic properties of M .

On monadic quantale algebras: basic properties and representation theorems

Sergey A. Solovyov (2010)

Discussiones Mathematicae - General Algebra and Applications

Motivated by the concept of quantifier (in the sense of P. Halmos) on different algebraic structures (Boolean algebras, Heyting algebras, MV-algebras, orthomodular lattices, bounded distributive lattices) and the resulting notion of monadic algebra, the paper introduces the concept of a monadic quantale algebra, considers its properties and provides several representation theorems for the new structures.

On monotone permutations of -cyclically ordered sets

Ján Jakubík (2006)

Czechoslovak Mathematical Journal

For an -cyclically ordered set M with the -cyclic order C let P ( M ) be the set of all monotone permutations on M . We define a ternary relation C ¯ on the set P ( M ) . Further, we define in a natural way a group operation (denoted by · ) on P ( M ) . We prove that if the -cyclic order C is complete and C ¯ , then ( P ( M ) , · , C ¯ ) is a half cyclically ordered group.

Currently displaying 81 – 100 of 226