Results 11 to 20 of about 1,425,221 (328)

Convex $L$-lattice subgroups in $L$-ordered groups [PDF]

open access: diamondCategories and General Algebraic Structures with Applications, 2018
In this paper, we have focused to study convex $L$-subgroups of an $L$-ordered group. First, we introduce the concept of a convex $L$-subgroup and a convex $L$-lattice subgroup of an $L$-ordered group and give some examples.
Rajabali Borzooei   +2 more
doaj   +2 more sources

On Ordered Divisible Groups [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1960
Introduction and remarks. In the theory of ?la-sets three main theorems stand out: that an na-set is universal for totally ordered sets of power not exceeding Ma, that any two n,-sets of power Ma are isomorphic and that na-sets of power Ma exist provided Ma is a regular cardinal number and Ea 0. Further, P. Erd6s, L. Gillman and M.
Norman L. Alling
openaire   +3 more sources

Ordered groups with greatest common divisors theory

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
An embedding (called a GCD theory) of partly ordered abelian group G into abelian l-group Γ is investigated such that any element of Γ is an infimum of a subset (possible non-finite) from G. It is proved that a GCD theory need not be unique.
Jiří Močkoř
doaj   +1 more source

Topological lattice-ordered groups [PDF]

open access: yesPacific Journal of Mathematics, 1979
Several types of hulls and completions of lattice ordered groups have been obtained by algebraic methods. In this paper is laid some groundwork for the application of topological and uniform-space concepts to the same end by setting forth those links—topological, algebraic and semantic— between a topological lattice ordered group H and a topologically ...
openaire   +2 more sources

Fuzzy neighborhood structures on partially ordered groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
Ahsanullah (1988) showed the compatibility between group structures and I-fuzzy neighborhood systems. In this paper, we require not only that the I-fuzzy neighborhood systems be compatible with the group structures, but also compatible with the order ...
Kamel El-Saady, M. Y. Bakier
doaj   +1 more source

Green’s relations for 2 × 2 matrices over linearly ordered abelian groups [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
We consider semigroups of 2 × 2 matrices over linearly ordered abelian groups with respect to multiplication, which is defined similarly to tropical algebra. We study Green’s relations on such semigroups.
Marilyn Kutti, Valdis Laan
doaj   +1 more source

Synthesis of Hierarchically Ordered Porous Silica Materials for CO2 Capture: The Role of Pore Structure and Functionalized Amine

open access: yesInorganics, 2022
Hierarchically ordered porous silica materials (HSMs) with a micro/mesoporous structure were successfully prepared with the sol-gel method using dextran, dextran/CTAB, and CTAB as templates.
Xiaoqi Jin   +5 more
doaj   +1 more source

Groupoid Fell bundles for product systems over quasi-lattice ordered groups [PDF]

open access: yes, 2015
Consider a product system over the positive cone of a quasi-lattice ordered group. We construct a Fell bundle over an associated groupoid so that the cross-sectional algebra of the bundle is isomorphic to the Nica-Toeplitz algebra of the product system ...
Rennie, Adam   +2 more
core   +3 more sources

LEFT-ORDERABLE COMPUTABLE GROUPS [PDF]

open access: yesThe Journal of Symbolic Logic, 2018
AbstractDowney and Kurtz asked whether every orderable computable group is classically isomorphic to a group with a computable ordering. By an order on a group, one might mean either a left-order or a bi-order. We answer their question for left-orderable groups by showing that there is a computable left-orderable group which is not classically ...
openaire   +3 more sources

Patterns of non-administration of ordered doses of venous thromboembolism prophylaxis: implications for novel intervention strategies. [PDF]

open access: yesPLoS ONE, 2013
Recent studies have documented high rates of non-administration of ordered venous thromboembolism (VTE) prophylaxis doses. Intervention strategies that target all patients have been effective, but prohibitively resource-intensive.
Kenneth M Shermock   +10 more
doaj   +1 more source

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