Results 11 to 20 of about 19,352 (312)

The Center Of A Generalized Effect Algebra

open access: yesDemonstratio Mathematica, 2014
In this article, we study the center of a generalized effect algebra (GEA), relate it to the exocenter, and in case the GEA is centrally orthocomplete (a COGEA), relate it to the exocentral cover system. Our main results are that the center of a COGEA is
Foulis D. J., Pulmannová S.
doaj   +2 more sources

A study of students' achievement in algebra: Considering the effect of gender and types of schools [PDF]

open access: yesEuropean Journal of STEM Education, 2016
Algebra is a branch of mathematics that deals with symbols and also the rules for manipulating those symbols, which are used to represent numbers and quantities in mathematical formulae and equations. It is needed and used in our everyday lives.
Salmiza Saleh   +1 more
doaj   +2 more sources

Extensions of Effect Algebra Operations

open access: yesActa Polytechnica, 2011
We study the set of all positive linear operators densely defined in an infinite-dimensional complex Hilbert space. We equip this set with various effect algebraic operations making it a generalized effect algebra.
Z. Riečanová, M. Zajac
doaj   +3 more sources

L-Fuzzy Sub-Effect Algebras

open access: yesMathematics, 2021
In this paper, the notions of L-fuzzy subalgebra degree and L-subalgebras on an effect algebra are introduced and some characterizations are given. We use four kinds of cut sets of L-subsets to characterize the L-fuzzy subalgebra degree.
Yan-Yan Dong, Fu-Gui Shi
doaj   +1 more source

Module Structure on Effect Algebras

open access: yesBulletin of the Section of Logic, 2020
In this paper, by considering the notions of effect algebra and product effect algebra, we define the concept of effect module. Then we investigate some properties of effect modules, and we present some examples on them.
Simin Saidi Goraghani   +1 more
doaj   +1 more source

Abstracting algebraic effects [PDF]

open access: yesProceedings of the ACM on Programming Languages, 2019
Proposed originally by Plotkin and Pretnar, algebraic effects and their handlers are a leading-edge approach to computational effects: exceptions, mutable state, nondeterminism, and such. Appreciated for their elegance and expressiveness, they are now progressing into mainstream functional programming languages. In this paper, we introduce
Dariusz Biernacki   +3 more
openaire   +1 more source

Research on Partial Ordered Sets That Can Be Constructed as Effect Algebras

open access: yesDiscrete Dynamics in Nature and Society, 2022
In this paper, we study effect algebra-induced partial ordered sets. All possible cases of effect algebras generated by bounded partial ordered set MI of height 2 are given.
Hai-feng Zhang, Meng Zhou
doaj   +1 more source

Spectral resolutions in effect algebras [PDF]

open access: yesQuantum, 2022
Effect algebras were introduced as an abstract algebraic model for Hilbert space effects representing quantum mechanical measurements. We study additional structures on an effect algebra $E$ that enable us to define spectrality and spectral resolutions ...
Anna Jenčová, Sylvia Pulmannová
doaj   +1 more source

The three types of normal sequential effect algebras [PDF]

open access: yesQuantum, 2020
A sequential effect algebra (SEA) is an effect algebra equipped with a $\textit{sequential product}$ operation modeled after the Lüders product $(a,b)\mapsto \sqrt{a}b\sqrt{a}$ on C$^*$-algebras.
Abraham Westerbaan   +2 more
doaj   +1 more source

Motion Modeling and Control of Lower Limb Exoskeleton Based on Max-Plus Algebra

open access: yesDiscrete Dynamics in Nature and Society, 2021
Max-plus algebra is a special method to describe the discrete event system. In this paper, it is introduced to describe the motion of lower limb exoskeleton.
Cuifeng Qin, Zuojun Liu
doaj   +1 more source

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