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The Class Equation and the Commutativity Degree for Complete Hypergroups
Andromeda Cristina Sonea, Irina Cristea, 2020, original scientific article

Found in: osebi
Keywords: complete hypergroup, commutativity degree, conjugacy class, class equation
Published: 22.12.2020; Views: 58; Downloads: 3
.pdf Fulltext (269,28 KB)

On dihedral hypergroups
Irina Cristea, Morteza Jafarpour, F. Alizadeh, 2014, original scientific article

Found in: osebi
Keywords: dihedral group, regular hypergroup, reversible hypergroup
Published: 16.06.2016; Views: 1572; Downloads: 6
URL Fulltext (0,00 KB)

How to use the ordinary mathematical models in the military field
Marcelino Belecciu, Camelia Ciobanu, Irina Cristea, 2016, original scientific article

Found in: osebi
Keywords: graph, optimal length, minimum length
Published: 03.01.2017; Views: 1698; Downloads: 162
.pdf Fulltext (512,41 KB)

A new type of fuzzy subsemihypermodules
Morteza Norouzi, Irina Cristea, 2017, original scientific article

Abstract: In this paper, combining the notions of “belongingness” and “quasi coincidence” of fuzzy points and fuzzy subsets, a new type of fuzzy subsemihypermodules, namely (∝, ⋐k)-fuzzy subsemihypermodules of general hypermodules, is introduced and characterized, using the “max” operator. Their properties and connections with other (α, β)-fuzzy subsemihypermodules are investigated.
Found in: osebi
Keywords: General hypermodule, (∝, ⋐k)-fuzzy subsemihypermodule, (∝, ∝)-fuzzy subsemihypermodule, (∝, qk)-fuzzy subsemihypermodule
Published: 01.03.2017; Views: 1399; Downloads: 1
.pdf Fulltext (95,71 KB)

An overview on the thoeory of hypernear- rings
Sanja Jančić-Rašović, Irina Cristea, Jelena Dakić, 2019, published scientific conference contribution abstract

Found in: osebi
Keywords: hypergroups, fuzzy sets, reduced hypergroups
Published: 23.06.2020; Views: 345; Downloads: 15
URL Fulltext (0,00 KB)
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Italian journal of pure and applied mathematics

Found in: osebi
Published: 04.11.2020; Views: 213; Downloads: 9
URL Fulltext (0,00 KB)
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Fuzzy Subhypergroups Degree
Irina Elena Cristea, 2016, original scientific article

Abstract: In this paper we define the degree to which a fuzzy subset on a hypergroup is a fuzzy subhypergroup by means of the residuate sets, constructed using the minimum t-norm. We give also some properties of this new index connected with the intersection of a family of fuzzy subhypergroups, and respectively with the homomorphic image/preimage of a fuzzy subset. We conclude with addressing new problems related with intuitionistic fuzzy subhypergroups and fuzzy subpolygroups in the framework of our discussion.
Found in: osebi
Keywords: Fuzzy set, fuzzy subhypergroup, residuate set, t-norm
Published: 24.06.2016; Views: 2067; Downloads: 0
.pdf Fulltext (213,48 KB)

2009, other performed works

Found in: osebi
Keywords: physics, chemistry, biology, mathematics, computer science, engineering
Published: 28.10.2019; Views: 546; Downloads: 6
.pdf Fulltext (864,82 KB)
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A method to compute the number of regular reversible Rosenberg hypergroup
Ali Tavakoli, Morteza Jafarpour, Irina Cristea, 2016, original scientific article

Abstract: The purpose of this note is the study of the hypergroups associated with binary relations. New types of matrices, called i-very good and regular reversible matrices, are introduced in order to give some properties of the Rosenberg hypergroups related to them. A program written in $MATLAB$ computes the number of these hypergroups up to isomorphism.
Found in: osebi
Keywords: hypergroup, binary relation, regular reversible hypergroup, Boolean matrix
Published: 02.09.2016; Views: 2161; Downloads: 0
.pdf Fulltext (309,47 KB)

Reducibility in hypergroups (crisp and fuzzy case)
Irina Cristea, 2015, published scientific conference contribution

Found in: osebi
Keywords: fundamental relations, reduced hypergroup, fuzzy reduced hypergroup, fuzzy grade
Published: 18.10.2017; Views: 1376; Downloads: 0
.pdf Fulltext (300,72 KB)

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