Results 31 to 40 of about 1,136,955 (184)

The Amalgamation Property in the Variety of Regular Double Stone Algebras: A Constructive View

open access: yesBulletin of the Section of Logic
In this paper we give a constructive proof that the variety of Boolean algebras has the strong amalgamation property by describing constructively the strong amalgams in the variety.
Antonio Ledda   +2 more
doaj   +1 more source

Representations of regular double Stone algebras: theory and applications

open access: yesLogic Journal of the IGPL
In this paper, we put together several Cayley-type Theorems variously scattered in the literature over the past four decades to prove some general theorems that encompass all of them under the unifying framework of regular double Stone algebras. Indeed,
I. Chajda, A. Ledda, G. Vergottini
semanticscholar   +1 more source

Dually quasi-De Morgan Stone semi-Heyting algebras II. Regularity [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2014
This paper is the second of a two part series. In this Part, we prove, using the description of simples obtained in Part I, that the variety $mathbf{RDQDStSH_1}$ of regular dually quasi-De Morgan Stone semi-Heyting algebras of level 1 is the join of the ...
Hanamantagouda P. Sankappanavar
doaj  

Spectral integration and spectral theory for non-Archimedean Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
Banach algebras over arbitrary complete non-Archimedean fields are considered such that operators may be nonanalytic. There are different types of Banach spaces over non-Archimedean fields.
S. Ludkovsky, B. Diarra
doaj   +1 more source

Stone duality, topological algebra, and recognition [PDF]

open access: yesJournal of Pure and Applied Algebra, 2016
Our main result is that any topological algebra based on a Boolean space is the extended Stone dual space of a certain associated Boolean algebra with additional operations. A particular case of this result is that the profinite completion of any abstract algebra is the extended Stone dual space of the Boolean algebra of recognizable subsets of the ...
openaire   +3 more sources

LOCALLY NORMAL SUBGROUPS OF TOTALLY DISCONNECTED GROUPS. PART II: COMPACTLY GENERATED SIMPLE GROUPS

open access: yesForum of Mathematics, Sigma, 2017
We use the structure lattice, introduced in Part I, to undertake a systematic study of the class $\mathscr{S}$ consisting of compactly generated ...
PIERRE-EMMANUEL CAPRACE   +2 more
doaj   +1 more source

Review and prospects of shear test of bolted rock joints

open access: yesDeep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren   +4 more
wiley   +1 more source

Influence of Structural and Environmental Parameters on Solar Air Collector Performance

open access: yesEnergy Science &Engineering, EarlyView.
Increasing air gap depth and mass flow rate significantly enhances the thermal performance of solar air collectors, with optimal performance achieved at an 8.5 cm air gap and 0.01318 kg/s mass flow rate. Air gap depth is identified as the dominant factor influencing system efficiency.
Quankun Zhu   +2 more
wiley   +1 more source

How Is FinTech Shaping Household Portfolio Behaviour?

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This paper examines how FinTech adoption influences household portfolio allocation across major advanced economies. Using a flow‐of‐funds framework and the Almost Ideal Demand System (AIDS), we model household demand for currency, deposits, loans, debt securities, and equity in the United States, United Kingdom, Euro Area, Japan and Australia.
Victor Murinde, Athina Petropoulou
wiley   +1 more source

Varieties of quasi-Stone algebras

open access: yesAnnals of Pure and Applied Logic, 2001
An algebra \({\mathbf L}= (L,\vee,\wedge, ',0,1)\) of type \((2,2,1,0,0)\) is a quasi-Stone algebra if \((L,\vee,\wedge,',0,1)\) is a bounded distributive lattice and the complementation satisfies the following identities: \(0'=1\), \(1'= 0\), \((x\vee y)'= x'\wedge y'\), \((x\wedge y')'= x'\vee y''\), \(x\leq x''\), \(x'\vee x''= 1\). The author gives
openaire   +1 more source

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