Results 111 to 120 of about 378,509 (227)

Coherent lamellar intergrowth in alkali feldspar. [PDF]

open access: yesContrib Mineral Petrol, 2023
Petrishcheva E, Heuser D, Abart R.
europepmc   +1 more source

Classification of states on certain orthomodular structures [PDF]

open access: yesarXiv
We define various type of states on implicative involutive BE algebras (Jauch-Piron state, (P)-state, (B)-state, subadditive state, valuation), and we investigate the relationships between these states. Moreover, we introduce the unital, full and rich sets of states, and we prove certain properties involving these notions.
arxiv  

Lattice pseudo-effect algebras as double residuated structures [PDF]

open access: yesarXiv, 2010
Pseudo-effect algebras are partial algebraic structures, that were introduced as a non-commutative generalization of effect algebras. In the present paper, lattice ordered pseudo-effect algebras are considered as possible algebraic non-commutative analogs of non-commutative non-standard reasoning.
arxiv  

Implications in pseudocomplemented and Stone lattices [PDF]

open access: yesarXiv
Two kinds of the connective implication are introduced as term operations of a pseudocomplemented lattice. It is shown that they share a lot of properties with the intuitionistic implication based on Heyting algebras. In particular, if the pseudocomplemented lattice in question is a Stone lattice then the considered implications satisfy some kind of ...
arxiv  

On Implicator Groupoids [PDF]

open access: yesarXiv, 2015
In a paper published in 2012, the second author extended the well-known fact that Boolean algebras can be defined using only implication and a constant, to De Morgan algebras-this result led him to introduce, and investigate (in the same paper), the variety I of algebras, there called implication zroupoids (I-zroupoids) and here called implicator ...
arxiv  

Consistent posets. [PDF]

open access: yesSoft comput, 2021
Chajda I, Länger H.
europepmc   +1 more source

Duality for distributive and implicative semi-lattices [PDF]

open access: yesarXiv
We develop a new duality for distributive and implicative meet semi-lattices. For distributive meet semi-lattices our duality generalizes Priestley's duality for distributive lattices and provides an improvement of Celani's duality. Our generalized Priestley spaces are similar to the ones constructed by Hansoul.
arxiv  

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