F: Mathematics & Decision (359)
GJSFR: F
General Definition of the Mean for Non-Additive Variables
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 3 This short note aims to offer the conceptual approach to the definition of the mean value, with reection to the prewious very interesting attempts with the same goal. The definition is at once simple and powerfull and its advantage are demonstrated with aplications in financial mathematics. The definition of the man value involves the term objective function, which characterize the natur...
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Authors Vu00c3u00a1clav Studenu00c3u00bdRead Journal Click Here
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Page No. 37 to 47
Kaluza-Klein Barotropic Cosmological Models with Varying Gravitational Constant G in Creation Field Theory of Gravitation
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 3 Kaluza Klein cosmological models with varying G in Hoyle Narlikar creation field theory of gravitation for barotropic fluid distribution have been investigated. The solution of the field equations have been obtained by assuming that G=Al, where A is a scale factor and l is a constant. The physical properties of the model are studied. ...
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Authors H. R. Ghate, Sandhya S. MhaskeRead Journal Click Here
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Page No. 27 to 36
Applications of Semigroups
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 3 This section deals with the applications of semigroups in general and regular semigroups in particular. The theory of semigroups attracts many algebraists due to their applications to automata theory, formal languages, network analogy etc. In section 2 we have seen different areas of applications of semigroups. We identified some examples in biology, sociology etc. whose semigroup struct...
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Authors P. Sreenivasulu Reddy,Mulugeta DawudRead Journal Click Here
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Page No. 17 to 25
Structure of Regular Semigroups
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 3 This paper concerned with basic concepts and some results on (idempotent) semigroup satisfying the identities of three variables. The motivation of taking three for the number of variables has come from the fact that many important identities on idempotent semigroups are written by three or fewer independent variables. We consider the semigroup satisfying the property abc = ac and prove ...
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Authors P. Sreenivasulu Reddy,Mulugeta DawudRead Journal Click Here
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Page No. 1 to 8
Linear Elliptic Systems with Nonlinear Boundary Conditions without Landesman-Lazer Conditions
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 3 The boundary value problem is examined for the system of elliptic equations of from in , where is positive semidefinite matrix on , and on . It is assumed that is a bounded function which may vanish at infinity. The proofs are based on Leray-Schauder degree methods. ...
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Authors Alzaki FadlallahRead Journal Click Here
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Page No. 9 to 15
Numerical Method for Finding All Points of Extremum of Random as Smooth and Non-Smooth Functions of One Variable
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 2 A device of non-classic Newton’s minorant and their graphs of functions of two real table-like variables have been introduced and a new numerical method for finding extremum of random as smooth and non-smooth functions of one real variable has been constructed. ...
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Authors Roman Bihun, Gregory TsehelykRead Journal Click Here
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Page No. 87 to 93
A Class of Multivalent Harmonic Functions Involving a Salagean Operator
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 2 A continuous complex valued function f=u+iv defined in a simply connected complex domain D is said to be harmonic in D if both u and v are real harmonic in D. Let F and G be analytic in D so that F(0)=G(0)=0, ReF = Ref=u, ReG = Imf=v by writing (F+iG)/2 = h, (FiG)/ 2 = g, The function f admits the representation f = h + g , where h and g are analytic in D. h is called the analytic part o...
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Authors Dr. Noohi KhanRead Journal Click Here
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Page No. 81 to 86
9×9 Composite Loube ÃŒÂ(re) Ì Magic Squares Infinite Abelian Group as a Miscellany Case of the 3×3 Loube ÃŒÂ(re) Ì Magic Squares Infinite Abelian Group
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 2 In this paper, mystic miscellaneous algebraic properties of the set of 9 × 9 Composite (Nested) LoubeÌ reÌ Magic Squares are vividly visualized. And, verbatim virtuoso of algebraic properties of the 3 × 3 LoubeÌ reÌ Magic Squares viz: Eigen group, Magic Sum group and Centre Pieces group viewed the algebraic properties of its 9 Ãâ€...
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Authors Babayo A.M, G.U.Garba, Abdul Aziz Garba Ahmad,Read Journal Click Here
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Page No. 71 to 79
4-Point Correlations of Dusty Fluid MHD Turbulent Flow in a 1st Order Chemical-Reaction
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 2 We have considered 4-point correlations of dusty fluid MHD turbulent flow in a first order chemical reaction. Here three and four-point correlations between fluctuating quantities have been considered and the quintuple correlations are neglected in comparison to the third and fourth order correlations. For the convention of calculation, the correlation equations are converted to the spec...
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Authors M. A. Bkar Pk, Abdul Malek, M.A.K.AzadRead Journal Click Here
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Page No. 53 to 69
Note on Intuitionistic Fuzzy (Normal) Subgroups or Vague (normal) Subgroups
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 2 The aim of this paper is basically to study some of the standard properties of the intuitionistic fuzzy subgroups under a crisp map. Also, we study some properties of intuitionistic fuzzy normal subgroups ...
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Authors K.Lakshmi, G.VasantiRead Journal Click Here
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Page No. 37 to 52
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On the Estimation of Crime Rate in the Southwest of Nigeria: Principal Component Analysis Approach
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 2 Crime is at alarming rate in this part of world and there are many factors that are contributing to this antisocietal behavour both among the youths and old. In this work, principal component analysis (PCA) was used as a tool to reduce the dimensionality and to really know those variables that were crime prone in the study region. Data were collected on twenty-eight crime variables from ...
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Authors Femi J. Ayoola, Adeyemi M. A.,Jabaru, S. O.Read Journal Click Here
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Page No. 1 to 8
On the Investigation of Determinant Variables on Economic Growth Rate in Some African Countries using Panel Data Analysis Approach
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 2 In most African Countries, increase in Gross Domestic Products (GDP) has not translated to economic growth and development. For some decades had a lot of contestson economic growth and development has been a serious issues.The focus of this study is to analysing the effects of economic determinants on economic growth rate in some African Countries by employing panel data analysis. Yearly...
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Authors Femi J. Ayoola, Femi AdepegbaRead Journal Click Here
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Page No. 9 to 18
Dissemination Sinusoidal Waves in of a Viscoelastic Strip
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 1 In this paper we consider the spectral problem for the wave propagation in extended plates of variable thickness. Describes how to solve problems and numerical results of wave propagation in infinitely large plates of variable thickness. Viscous properties of the material are taken into account by means of an integral operator Voltaire. The study is part of the spatial theory of visco el...
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Authors Safarov Ismail Ibrahimovich, Akhmedov Maqsud Sharipovich, Boltayev Zafar IhterovichRead Journal Click Here
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Page No. 39 to 60
Loubere ÃŒÂMagic Squares Semigroups and Groups
Published In: GJSFR Part: F: Mathematics & Decision Volume: 15 Issue: 1 This work is a pioneer investigation of semigroups and groups over the LoubeÃŒÂreÌ Magic Squares. By the LoubeÃŒÂreÌ Magic Squares, we understand the magic squares formed by the De La LoubeÃŒÂreÌ Procedure. The set of the LoubeÃŒÂreÌ Magic Squares equipped with the matrix binary operation of addition forms a semigroup if the underlining set...
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Authors Babayo A.M., G.U.GarbaRead Journal Click Here
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Page No. 61 to 70