Results 11 to 20 of about 108 (66)
Quantum Algebra From Generalized Q-Algebra [PDF]
The paper contains an investigation of the notion of Q-algebras. A brief introduction toquantum mechanics is given.A brief introduction to BCI/BCK/BCH-algebra are given. A new generalization of Q-algebrahas been introduced.
Tabuni, Muna
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A spectroscopic look at the gravitationally lensed type Ia SN 2016geu at z=0.409
The spectacular success of type Ia supernovae (SNe Ia) in SN-cosmology is based on the assumption that their photometric and spectroscopic properties are invariant with redshift.
Cano, Zach +6 more
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A frame-theoretic perspective on Esakia duality [PDF]
We introduce the category of Heyting frames, those coherent frames L in which the compact elements form a Heyting subalgebra of L, and show that it is equivalent to the category of Heyting algebras and dually equivalent to the category of Esakia spaces ...
Bezhanishvili, G. +2 more
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Dedekind sigma-complete l-groups and Riesz spaces as varieties
We prove that the category of Dedekind $\sigma$-complete Riesz spaces is an infinitary variety, and we provide an explicit equational axiomatization. In fact, we show that finitely many axioms suffice over the usual equational axiomatization of Riesz ...
Abbadini, Marco
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A new proof of the Joyal-Tierney theorem [PDF]
We give an alternative proof of the well-known Joyal-Tierney Theorem in locale theory by utilizing Priestley duality for frames.Nous donnons une preuve alternative du th ́eor`eme bien connu de Joyal-Tierney dans la th ́eorie des locales en utilisant la ...
G. Bezhanishvili, L. Carai, P. Morandi
core
Adjoint maps between implicative semilattices and continuity of localic maps [PDF]
We study residuated homomorphisms (r-morphisms) and their adjoints, the so-called localizations (or l-morphisms), between implicative semilattices, because these objects may be characterized as semilattices whose unary meet operations have adjoints ...
Erné, Marcel +2 more
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Characterization of metrizable Esakia spaces via some forbidden configurations [PDF]
By Priestley duality, each bounded distributive lattice is represented as the lattice of clopen upsets of a Priestley space, and by Esakia duality, each Heyting algebra is represented as the lattice of clopen upsets of an Esakia space.
Bezhanishvili, G, Carai, L
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Model-completion of varieties of co-Heyting algebras [PDF]
It is known that exactly eight varieties of Heyting algebras have a model-completion, but no concrete axiomatisation of these model-completions were known by now except for the trivial variety (reduced to the one-point algebra) and the variety of Boolean
Darnière, Luck, Junker, Markus
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Codimension and pseudometric in co-Heyting algebras [PDF]
In this paper we introduce a notion of dimension and codimension for every element of a distributive bounded lattice $L$. These notions prove to have a good behavior when $L$ is a co-Heyting algebra.
Faculte ́ Des Sciences +2 more
core
Principal congruences in weak Heyting algebras [PDF]
Let A be a weak Heyting algebra and let a, b ∈ A. We give a description for the congruence generated by the pair (a, b), and we use it in order to give a necessary and sufficient condition for a function f : Ak → A to be compatible with every congruence ...
San Martín, Hernán Javier
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