SCIREA Journal of Mathematics (ISSN: 2995-5823)

SCIREA Journal of Mathematics is an international, scientific peer-reviewed open access journal published online by SCIREA.

Open Access free for readers, with article processing charges (APC)paid by authors or their institutions.

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Rapid publication: manuscripts are peer-reviewed and a first decision provided to authors approximately 20 days after submission; acceptance to publication is undertaken in 5 days.

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Recently Published Papers
Open Access
Siyi Yu, Xiaojun Zhang
Abstract: On the basis of set theory, propositional logic and generalized quantifier theory, this paper indicates that the other 23 valid syllogisms can be only derived from the syllogism IAI-4. These derivations use the symmetry of quantifiers no and some, the definitions of inner and outer negation of Aristotelian quantifiers, dedu
Abstract       References PDF (263680 k) 20 Downloads     13179 Views     DOI: 10.54647/mathematics110479
Open Access
Liheng Hao
Abstract: The simple and feasible methods for screening valid generalized modal syllogisms are as follows: (1) First, prove the validity of a generalized syllogism, then add at least one necessary modality (□) or possible modality (◇) to this syllogism, (2) Secondly, according to the basic fact that the conclusion of a modal syllogis
Abstract       References PDF (320167 k) 15 Downloads     34826 Views     DOI: 10.54647/mathematics110451
Open Access
Todor Zh. Mollov
Abstract: In the present paper we establish, that the universe is eternal, that is it has no beginning and no end in the time. If we accept the original Big Bang theory, i.e. that the universe has arose from an extremely small, dense and hot fireball by an unique big bang and an inflation which continues until now, then we pr
Abstract       References PDF (223232 k) 27 Downloads     30529 Views     DOI: 10.54647/mathematics110418
Open Access
Guojun Fang, Zhiqing Fu
Abstract: In the calculus class, some students were confused by the expression of Inverse Function in two forms, which causes difficulties in understanding how to calculate the derivative of Inverse Function. It was because they were taught to denote independent variable only by using x in high school. In order to help them understan
Abstract       References PDF (155618 k) 63 Downloads     31052 Views     DOI: 10.54647/mathematics110437
Open Access
Vimbiso Shiri, Xianyi Li
Abstract: This work mainly investigates the bifurcation problems and topological classifications of a discrete phytoplankton-zooplankton model, whose continuous version was proposed by Truscott and Brindley in 1994. The model is derived by using the semi-discretization technique. Within this study, trivial and semi-trivial fixed poi
Abstract       References PDF (512183 k) 69 Downloads     31211 Views     DOI: 10.54647/mathematics110427
Open Access
El Hadji SOW, Moussa FALL, Oumar SALL
Abstract: We give the set of algebraic points of degree ≤5 over Q on the hyperelliptic curveC: y²=6x(x^4+3). This result extends a previous result of Bruin of who described in [1] the set of Q-rational points on this curve.
Abstract       References PDF (44422 k) 76 Downloads     30701 Views     DOI: 10.54647/mathematics110421
Open Access
Nikolaos Manikaros, Evgenios Avgerinos, Roza Vlachou
Abstract: In this work and in the context of the preparation of the Doctoral Dissertation on the subject "Study of Mathematical Modeling for Creation and Mining of Knowledge with the aim of producing new Evaluation Models - Certification of Resource Management Criteria with the help of IT, conducting a Comparative Study and Applicati
Abstract       References PDF (483890 k) 68 Downloads     30724 Views     DOI: 10.54647/mathematics110425
Open Access
Abstract: We pose various congruences on the integers of form 6^n\ +\ 1, n\ \in\ Z_+, which may encourage younger number theorists to do research in number theory and settle new dimensions in this field. We saw that there are only three prime numbers, namely 7,\ 37, and 1297 of form 6^n\ +\ 1, whenever n\ \in\ Z_+-{{2}^km,\ k\geq6,\
Abstract       References PDF (43637 k) 83 Downloads     29495 Views     DOI: 10.54647/mathematics110403
Open Access
Long Wei, Xiaojun Zhang
Abstract: Syllogistic reasoning plays a crucial part in natural language information processing. For the purpose of providing a consistent interpretation for Aristotelian modal syllogistic, this paper firstly proves the validity of the syllogism EI◇O-2, and then takes it as the basic axiom to derive the other 38 valid modal syllogism
Abstract       References PDF (296191 k) 80 Downloads     29450 Views     DOI: 10.54647/mathematics110402
Open Access
Saofee Busaman
Abstract: In this paper, we define the set (CF_(T_n,(n))(X_n))^{A^s} of all n-ary C-formulas on the partial algebraic system A^s=(A;(f^A_i)_i in I,r^A) of type (T_n,(n)) and define the operation R^{n,A} on the set( (W^C_{T_n}(X_n))^{A^s}U(CF_(T_n,(n))(X_n))^{A^s}. After this definition we have a unitary Menger algebra ( ( (W
Abstract       References PDF (1882624 k) 86 Downloads     29377 Views     DOI: 10.54647/mathematics110401