Results 31 to 40 of about 1,569 (137)

Semilattices global valuations in the topos approach to quantum mechanics [PDF]

open access: yes, 2017
In the framework of the topos approach to quantum mechanics a kind of global valuation is introduced and studied. It allows us to represent certain features related to the logical consequences of properties about quantum systems when its phase space is ...
de Ronde, Christian   +2 more
core   +1 more source

Conrad’s Partial Order on P.Q.-Baer *-Rings

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2018
We prove that a p.q.-Baer *-ring forms a pseudo lattice with Conrad’s partial order and also characterize p.q.-Baer *-rings which are lattices. The initial segments of a p.q.-Baer *-ring with the Conrad’s partial order are shown to be an orthomodular ...
Khairnar Anil, Waphare B.N.
doaj   +1 more source

A Note of Filters in Effect Algebras

open access: yesChinese Journal of Mathematics, Volume 2013, Issue 1, 2013., 2013
We investigate relations of the two classes of filters in effect algebras (resp., MV‐algebras). We prove that a lattice filter in a lattice ordered effect algebra (resp., MV‐algebra) E does not need to be an effect algebra filter (resp., MV‐filter). In general, in MV‐algebras, every MV‐filter is also a lattice filter.
Biao Long Meng   +3 more
wiley   +1 more source

On Intuitionistic Fuzzy Context‐Free Languages

open access: yesJournal of Applied Mathematics, Volume 2013, Issue 1, 2013., 2013
Taking intuitionistic fuzzy sets as the structures of truth values, we propose the notions of intuitionistic fuzzy context‐free grammars (IFCFGs, for short) and pushdown automata with final states (IFPDAs). Then we investigate algebraic characterization of intuitionistic fuzzy recognizable languages including decomposition form and representation ...
Jianhua Jin   +3 more
wiley   +1 more source

Modularity, Atomicity and States in Archimedean Lattice Effect Algebras [PDF]

open access: yes, 2010
Effect algebras are a generalization of many structures which arise in quantum physics and in mathematical economics. We show that, in every modular Archimedean atomic lattice effect algebra $E$ that is not an orthomodular lattice there exists an $(o ...
Paseka, Jan
core   +4 more sources

Conditional Probability, Three‐Slit Experiments, and the Jordan Algebra Structure of Quantum Mechanics

open access: yesAdvances in Mathematical Physics, Volume 2012, Issue 1, 2012., 2012
Most quantum logics do not allow for a reasonable calculus of conditional probability. However, those ones which do so provide a very general and rich mathematical structure, including classical probabilities, quantum mechanics, and Jordan algebras. This structure exhibits some similarities with Alfsen and Shultz′s noncommutative spectral theory, but ...
Gerd Niestegge, B. G. Konopelchenko
wiley   +1 more source

Quantum logic is undecidable

open access: yes, 2020
We investigate the first-order theory of closed subspaces of complex Hilbert spaces in the signature $(\lor,\perp,0,1)$, where `$\perp$' is the orthogonality relation.
Fritz, Tobias
core   +1 more source

A priori Knowledge and the Kochen-Specker Theorem [PDF]

open access: yes, 2006
We introduce and formalize a notion of "a priori knowledge" about a quantum system, and show some properties about this form of knowledge. Finally, we show that the Kochen-Specker theorem follows directly from this study. This version is a draft version,
Calude   +4 more
core   +5 more sources

A Comparison of Implications in Orthomodular Quantum Logic—Morphological Analysis of Quantum Logic

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2012, Issue 1, 2012., 2012
Morphological operators are generalized to lattices as adjunction pairs (Serra, 1984; Ronse, 1990; Heijmans and Ronse, 1990; Heijmans, 1994). In particular, morphology for set lattices is applied to analyze logics through Kripke semantics (Bloch, 2002; Fujio and Bloch, 2004; Fujio, 2006).
Mitsuhiko Fujio, Shigeru Kanemitsu
wiley   +1 more source

Categoricity and Possibility. A Note on Williamson's Modal Monism [PDF]

open access: yes, 2020
The paper sketches an argument against modal monism, more specifically against the reduction of physical possibility to metaphysical possibility.
Toader, Iulian D.
core  

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