Results 41 to 50 of about 72,546 (307)

Coherent control in atomic chains: To trap and release a traveling excitation

open access: yesPhysical Review Research, 2022
We introduce a protocol for dynamical dispersion engineering in an atomic chain formed by an ordered array of multilevel atoms with subwavelength lattice constant.
R. Gutiérrez-Jáuregui   +1 more
doaj   +1 more source

Idempotent 2x2 matrices over linearly ordered abelian groups [PDF]

open access: yesCategories and General Algebraic Structures with Applications
In this paper we study multiplicative semigroups of $2\times 2$ matrices over a linearly ordered abelian group with an externally added bottom element. The multiplication of such a semigroup is defined by replacing addition and multiplication by join and
Valdis Laan, Marilyn Kutti
doaj   +1 more source

Sublattice subgroups of finitely presented lattice-ordered groups [PDF]

open access: yes, 2006
Graham Higman proved that the finitely generated groups that occur as subgroups of finitely presented groups are precisely those that can be defined by recursively enumerable sets of relations.We prove the analogue for lattice-ordered groups:TheoremA ...
Glass, A.M.W.
core   +1 more source

A lattice-ordered T-bipolar soft group framework for smart manufacturing system optimization in industrial engineering

open access: yesAin Shams Engineering Journal
In smart manufacturing systems, decision-making is essential for setting priorities and allocating resources as efficiently as possible. Predictive models are used to make decisions about whether to schedule maintenance, change production levels, or ...
Jabbar Ahmmad   +2 more
doaj   +1 more source

Ordered states in the Kitaev-Heisenberg model: From 1D chains to 2D honeycomb

open access: yesScientific Reports, 2018
We study the ground state of the 1D Kitaev-Heisenberg (KH) model using the density-matrix renormalization group and Lanczos exact diagonalization methods. We obtain a rich ground-state phase diagram as a function of the ratio between Heisenberg (J = cosϕ)
Cliò Efthimia Agrapidis   +2 more
doaj   +1 more source

*-Maximum lattice-ordered groups

open access: yesRocky Mountain Journal of Mathematics, 2013
Denote by \(W\) the category of archimedean \(l\)-groups \(G\) with a distinguished positive weak order unit \(e_G\) (that is, \(e_G^\bot\equiv\{g:|g|\wedge e_G=0\}=\{0\}\)), and morphisms \(\varphi\colon G\to H\) the \(l\)-group homomorphisms with \(\varphi(e_G)=e_H\). For \(G\in |W|\), denote by \(G^*\equiv\{g\in G:\exists n\in\mathbb N\;|g|\leq ne_G\
openaire   +2 more sources

A STUDY ON PROPERTIES OF LATTICE ORDERED SOFT GROUP [PDF]

open access: yes, 2017
In this paper, operations like basic union, basic intersection, conjunction and disjunction of soft sets have been introduced and also some properties for lattice ordered soft group have been ...
L. Vijayalakshmi, J. Vimala
core   +1 more source

Experimental and computational study of nearly half-metallic V2CoGa [PDF]

open access: yesAIP Advances
Here, we present the results of a combined computational and experimental study of electronic, magnetic, and structural properties of V2CoGa, a Heusler alloy that exhibits high spin polarization values in an ordered crystal structure.
Parashu Kharel   +6 more
doaj   +1 more source

Wreath Products of Nonoverlapping Lattice Ordered Groups [PDF]

open access: yes, 1975
One of the fundamental tools in the theory of totally ordered groups is Hahn’s Theorem (a detailed discussion may be found in Fuchs [3]), which asserts, roughly, that every abelian totally ordered group can be embedded in a lexicographically ordered ...
John A. Read
core   +1 more source

Crystal structure of bis[(1-ammonio-1-phosphonoethyl)phosphonato]tetraaquacadmium dihydrate: a powder X-ray diffraction study

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, [CdL2(H2O)4]·2H2O [L = (1-ammonio-1-phosphonoethyl)phosphonate, C2H8NO6P2−], the CdII ion is situated on an inversion centre being coordinated by four aqua molecules in the equatorial plane and two phosphonate O atoms from two ...
Mwaffak Rukiah, Thaer Assaad
doaj   +1 more source

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