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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: 1091; Downloads: 40
.pdf Fulltext (269,28 KB)

An Overview of the Characteristics of Free Market Economies
Andi Jamšek, 2021, master's thesis

Abstract: In this work we are collecting and processing basic information that allows us a general overview of the five most popular global, free market economies which are: the exchange of currency (foreign exchange), rare metals, stocks, residential real estate and the cryptocurrency markets. By having more in-depth knowledge about the possibilities that each separate financial instrument or asset offers we are devising a strategy suited for different types of investors. Any economical system in its most natural state will create some sort of dynamic; it is possible to draw parallels between the free-economy and the Lotka-Volterra predator behaviour equations, which can help us to better visualise the behaviour of such systems. We try to compare the model with real life scenarios that had greatly affected some of the economies, one of them being the popularization of cryptocurrencies in 2017 and the other being the most recent Coronavirus epidemic. By having a rough comparison we can see a clearer picture of the practical uses and the necessities of having an increased and better selection of such models.
Found in: osebi
Keywords: free market, investing, cryptocurrency, stocks, foreign exchange, Lotka-Volterra predator/prey equations
Published: 28.06.2021; Views: 1212; Downloads: 47
.pdf Fulltext (1,93 MB)

Symmetry in the Theory of Dependence Relations
Irina Cristea, 2021, published scientific conference contribution abstract

Found in: osebi
Keywords: dependence relation, degree of influence, degree of impact, fuzzy set, hypercompositional algebra
Published: 10.08.2021; Views: 698; Downloads: 25
.pdf Fulltext (216,43 KB)

The Reducibility Concept in General Hyperrings
Irina Cristea, Milica Kankaraš, 2021, original scientific article

Found in: osebi
Keywords: general hyperring, reducibility, fundamental relation, equivalence
Published: 25.08.2021; Views: 615; Downloads: 23
.pdf Fulltext (302,45 KB)

Supplements Related to Normal p-Projective Hypermodules
Burcu Turkmen, Hashem Bordbar, Irina Cristea, 2022, original scientific article

Abstract: In this study, the role of supplements in Krasner hypermodules is examined and related to normal p-projectivity. We prove that the class of supplemented Krasner hypermodules is closed under finite sums and under quotients. Moreover, we give characterizations of finitely generated supplemented and amply supplemented Krasner hypermodules. In the second part of the paper we relate the normal projectivity to direct summands and supplements in Krasner hypermodules.
Found in: osebi
Keywords: direct summand, normal p-projective hypermodule, supplement subhypermodule, small subhypermodule
Published: 06.06.2022; Views: 194; Downloads: 0
.pdf Fulltext (309,59 KB)

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

Found in: osebi
Keywords: dihedral group, regular hypergroup, reversible hypergroup
Published: 16.06.2016; Views: 2737; Downloads: 10
URL Fulltext (0,00 KB)

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

Found in: osebi
Keywords: graph, optimal length, minimum length
Published: 03.01.2017; Views: 2883; Downloads: 204
.pdf Fulltext (512,41 KB)

A new type of fuzzy subsemihypermodules
Morteza Norouzi, Irina Elena 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: 2531; Downloads: 1
.pdf Fulltext (95,71 KB)

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