Results 11 to 20 of about 4,805 (261)

Amalgamation Property in the subvarieties of Gautama and Almost Gautama Algebras [PDF]

open access: yesJournal of Mahani Mathematical Research
Gautama algebras were introduced in 2022, as a common generalization of regular double Stone algebras and regular Kleene Stone algebras. Even more recently, Gautama algebras were further generalized to Almost Gautama algebras (AG for short).
Juan M. Cornejo   +1 more
doaj   +1 more source

Positive families and Boolean chains of copies of ultrahomogeneous structures

open access: yesComptes Rendus. Mathématique, 2020
A family of infinite subsets of a countable set $X$ is called positive iff it is closed under supersets and finite changes and contains a co-infinite set.
Kurilić, Miloš S.   +1 more
doaj   +1 more source

Strong amalgamations of lattice ordered groups and modules

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
We show that every variety of representable lattice ordered groups fails the strong amalgamation property. The same result holds for the variety of f-modules over an f-ring.
Mona Cherri, Wayne B. Powell
doaj   +1 more source

First-principles calculations to investigate structural, elastic and thermodynamic properties of new M2ScSnC2 (M=V or Nb) quaternary compounds for 312 MAX phases

open access: yesJournal of Materials Research and Technology, 2023
In this research, the approach of FP-LAPW (full potential linearized augmented plane wave) is employed within WIEN2K for the investigations of structural, thermodynamic, electronic, and mechanical properties of the V2ScSnC2 and Nb2ScSnC2 MAX-phases ...
Mohammed Bendjemai   +8 more
doaj   +1 more source

Dynamic millimeter-wave OAM beam generation through programmable metasurface

open access: yesNanophotonics, 2022
Millimeter-wave (mmWave) and orbital angular momentum (OAM) multiplexing are two key technologies for modern wireless communications, where significant efforts have been devoted to combining these two technologies for extremely high channel capacities ...
Bai Xudong   +6 more
doaj   +1 more source

Fraïssé limit via forcing [PDF]

open access: yesJournal of Mahani Mathematical Research
Suppose $\mathcal{L}$ is a finite relational language and $\mathcal{K}$ is a class of finite $\mathcal{L}$-structures closed under substructures and isomorphisms.
Mohammad Golshani
doaj   +1 more source

Discourse analysis of religion and inter-communal conflicts and its causes in Nigeria

open access: yesHTS Teologiese Studies/Theological Studies, 2020
The religious crisis in Nigeria dates back to the colonial era. The amalgamation of two distinct nationalities (Northern and Southern Nigeria) for the purpose of administrative convenience by the colonial government, irrespective of their cultural and ...
Christopher N. Ibenwa, Favour C. Uroko
doaj   +1 more source

Complete genome sequence of Nguyenibacter sp. L1, a phosphate solubilizing bacterium isolated from Lespedeza bicolor rhizosphere

open access: yesFrontiers in Microbiology, 2023
Phosphorus (P) deficiency is a predominant constraint on plant growth in acidified soils, largely due to the sequestration of P by toxic aluminum (Al) compounds. Indigenous phosphorus-solubilizing bacteria (PSBs) capable of mobilizing Al-P in these soils
Xiao Li Li   +8 more
doaj   +1 more source

Amalgamation and Ramsey properties of L spaces

open access: yesAdvances in Mathematics, 2020
We study the dynamics of the group of isometries of $L_p$-spaces. In particular, we study the canonical actions of these groups on the space of $ $-isometric embeddings of finite dimensional subspaces of $L_p(0,1)$ into itself, and we show that for $p \neq 4,6,8,\ldots$ they are $\varepsilon$-transitive provided that $ $ is small enough.
Ferenczi, V.   +3 more
openaire   +2 more sources

The Administrative Costs of Local Government Property-Based User Charges and Their Regressivity

open access: yesCentral European Public Administration Review, 2011
The paper measures the administrative costs (assessment and collection costs) of immovable property user charges in local governments in Croatia. This study represents a small scale survey comprising mostly small local governments.
Helena Blažić   +2 more
doaj   +1 more source

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