Results 31 to 40 of about 2,749,823 (130)

Hyperideal theory in ordered Krasner hyperrings

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
In this paper, we study some properties of ordered Krasner hyper-rings. Also we state some definitions and basic facts and prove some results on ordered Krasner hyperring (R, +, ·, ≤).
Omidi Saber, Davvaz Bijan
doaj   +1 more source

FUZZY SUBSETS OF THE PHENOTYPES OF F2-OFFSPRING [PDF]

open access: yes, 2019
This paper presents a connection between fuzzy sets, biological inheritance and hyperstructures in which we consider the set of phenotypes of the second generation $F_{2}$ in different types of inheritance, define fuzzy subsets of it and construct a ...
Al-Tahan, Madeleine, Davvaz, Bijan
core   +1 more source

Construction of composition (m, n, k)-hyperrings

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
In this paper, our aim is to introduce the notion of a composition (m, n, k)-hyperring and to analyze its properties. We also consider the algebraic structure of (m, n, k) hyperrings which is a generalization of composition rings and composition ...
Davvaz B.   +2 more
doaj   +1 more source

Percutaneous Repair or Medical Treatment for Secondary Mitral Regurgitation

open access: yesNew England Journal of Medicine, 2018
BACKGROUND In patients who have chronic heart failure with reduced left ventricular ejection fraction, severe secondary mitral‐valve regurgitation is associated with a poor prognosis. Whether percutaneous mitral‐valve repair improves clinical outcomes in
J. Obadia   +29 more
semanticscholar   +1 more source

Hypergroups associated with HX-groups

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
We have already studied a correspondence between HX-groups and hypergroups. Now we extend this correspondence to semigroups of sub- sets of a group G (and to begin, we considered ℤ2 × ℤ3 as group G). Moreover these subsets can have non empty intersection,
Corsini Piergiulio
doaj   +1 more source

HX-groups and Hypergroups

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
One considers the hypergroups associated with the HX-groups Z=nZ and with the set of square matrices of order 2, with coefficients in Z=2Z and one calculates their fuzzy grade.
Corsini Piergiulio
doaj   +1 more source

The Right-Wing Critique of Europe [PDF]

open access: yes, 2022
The Right-Wing Critique of Europe analyses the opposition to the European Union from a variety of right-wing organisations in Western, Central and Eastern Europe.

core   +1 more source

Stress and defense responses in plant secondary metabolites production

open access: yesBiological Research, 2019
In the growth condition(s) of plants, numerous secondary metabolites (SMs) are produced by them to serve variety of cellular functions essential for physiological processes, and recent increasing evidences have implicated stress and defense response ...
T. Isah
semanticscholar   +1 more source

Isomorphism theorems of fuzzy hypermodules

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper we define and study a new class of subfuzzy hypermodules of a fuzzy hypermodule that we call normal subfuzzy hypermodules. The connection between hypermodules and fuzzy hypermodules can be used as a tool for proving results in fuzzy ...
Norouzi Morteza, Leoreanu-Fotea Violeta
doaj   +1 more source

Semiring systems arising from hyperrings

open access: yes, 2022
Hyperfields and systems are two algebraic frameworks which have been developed to provide a unified approach to classical and tropical structures. All hyperfields, and more generally hyperrings, can be represented by systems. We show that, conversely, we
Akian, Marianne   +2 more
core   +2 more sources

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