F: Mathematics & Decision (359)
GJSFR: F
Multi-Criteria Optimization Problems with Non-Smooth Functions
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 4 In this paper, we deal with non-smooth multi criteria optimization problem. Throughout the text we consider the functions which are non-differentiable. A few special derivatives have been deployed to obtain first order optimality conditions. We presented the generalized form of optimality conditions for multi-objective optimization problem when classical derivatives failed to apply. We i...
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Authors H. S. Faruque AlamRead Journal Click Here
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Page No. 1 to 7
Yet another New Proof of Feuerbachs Theorem
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 4 In this article we give a new proof of the celebrated theorem of Feuerbach. ...
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Authors Dasari Naga Vijay KrishnaRead Journal Click Here
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Page No. 9 to 15
Effects of Non Isothermality and Wind-Shears on the Propagation of Gravity Waves (II): Ray-Tracing Images
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 3 We investigate the effects of the wind shears and nonisothermality on the ray propagation of acoustic-gravity waves in a nonhydrostatic atmosphere by generalizing Marks & Eckermann’s WKB ray-tracing formalism (1995: J. Atmo. Sci., 52, 11, 1959-1984; cited as ME95). Five atmospheric conditions are considered, starting from the simplest isothermal and shearfree case. In ev...
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Authors J. Z. G. MaRead Journal Click Here
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Page No. 37 to 81
On Some Bicomplex Modules
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 3 A class of entire bicomplex sequences denoted by B, studied by Srivastava & Srivastava in 2007 is studied and is shown to be a bicomplex module. The subclasses of this class,studied by Wagh in 2008, are also shown to be bicomplex modules. Further they have been shown to form module structure over the class B. ...
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Authors Mamta Amol WaghRead Journal Click Here
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Page No. 25 to 36
A Semi-Symmetric Metric S-Connection in a Generalised Co-Symplectic Manifold
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 3 In the present paper, we define a new type of connection called semi-symmetric S-connection in a generalised co-symplectic manifold and studied some of its properties. The relation between the curvature tensor with respect to this connection and the curvature tensor with respect to the Riemannian connection is establised. ...
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Authors Deepa Kandpal, J. UpretiRead Journal Click Here
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Page No. 83 to 89
Numerical Solutions for the Improved Korteweg De Vries and the Two Dimension Korteweg De Vries (2D KDV) Equations
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 3 In this paper we established a traveling wave solution by the ( -expansion method for nonlinear partial differential equations (PDEs).The proposed method gives more general exact solutions for two different types of nonlinear partial differential equations such as the improved Korteweg de Vries equation and the two dimension Korteweg de Vries (2D KdV) equations. ...
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Authors K. Raslan, Z. Abu ShaeirRead Journal Click Here
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Page No. 91 to 97
Existence of Fixed Points of a Pair of Self Maps under Weak Generalized Geraghty Contractions in Complete Partially Ordered Partial B-Metric Spaces
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 2 We introduce the notion of (α, Æ, β) - weak generalized Geraghty contractions in complete partially ordered partial b - metric spaces via triangular α-admissible mappings. We obtain sufficient conditions for the existence of fixed points of such maps in complete partially ordered partial b - metric spaces with coefficient s ≥ 1, where Ãâ...
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Authors Vedula PerrajuRead Journal Click Here
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Page No. 89 to 111
Inventory Management for Irregular Shipment of Goods in Distribution Center
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 2 The shipping amount of commodity goods (Foods, confectionery, dairy products, such as public cosmetic pharmaceutical products) changes irregularly at the distribution center dealing with the general consumer goods. Because the shipment time and the amount of the shipment are irregular, the demand forecast becomes very difficult. For this, the inventory control becomes difficult, too. It ...
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Authors Jun Usuki, Hitoshi Takeda, Masatoshi KitaokaRead Journal Click Here
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Page No. 75 to 88
Accuracy Comparison using Different Modeling Techniques under Limited Speech Data of Speaker Recognition Systems
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 2 Pointing towards programmed machine learning by human, a technique for speaker recognition with speaker identity in light of man machine interface is an interest of science. Motivated by the same, we propose a philosophy to recognize speakers. Inside of our investigation, obtaining speech signal, analysis of spectrogram, neutralization, extraction of speaker specific features for recogni...
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Authors Satyanand Singh, Ajeet SinghRead Journal Click Here
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Page No. 1 to 15
Two Curious Summation Formulae in the Monograph of Salahuddin Et Al
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 2 In this paper we have developed two summation formulae which are unique with the help of contiguous relation. ...
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Authors Salahuddin, R. K. KholaRead Journal Click Here
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Page No. 67 to 73
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Ducting in Extended Plates of Variable Thickness
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 2 The paper deals with the spread of its own waves on the visco elastic plate with variable thickness. Basic relations of the classical theory of plates of variable thickness obtained on the basis of the principles of virtual displacements. The spectral problem, which is not self ad joint. Built for the task biorthogonality conditions, based on the Lagrange formula. The numerical solution ...
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Authors Ismail Ibrahimovich Safarov, Maqsud Sharipovich Akhmedov, Zafar Ihterovich BoltaevRead Journal Click Here
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Page No. 33 to 66
New Generalization of Angular Displacement with Product of Certain Special Functions in a Shaft
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 2 The object of this paper is to establish a new generalization of angular displacement in a shaft with a product of certain special function. A main result based upon the H-function of several complex variables, I-function of one variable, general polynomial of several variables, which provide unification and extension of numerous results in theory of special function. The special cases o...
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Authors Sunil Kumar Sharma, Ashok Singh ShekhawatRead Journal Click Here
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Page No. 25 to 32
Improved Class of Ratio Estimators for Finite Population Variance
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 2 In this paper, we have suggested a class of improved ratio estimators for finite population variance. The proposed class of estimators is obtained by transforming both the sample variances of study and auxiliary variables. The MSE of the proposed estimators have been obtained and the conditions for their efficiency over some existing variance estimators have been established. The present...
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Authors Audu Ahmed, Adedayo Amos Adewara, Ran Vijay Kumar SinghRead Journal Click Here
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Page No. 17 to 24
Mixed Quadrature Rule for Double Integrals of Simpsons 1/3rd and Gauss Legendre two Point Rule in two Variables
Published In: GJSFR Part: F: Mathematics & Decision Volume: 16 Issue: 1 In this article we are concerned with mixed quadrature rule of higher degree of precision for double integrals with double variables. The rule is numerically tested taking some suitable texts and the error bound is determined. ...
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Authors Saumya Ranjan Jena, Subash Chandra MishraRead Journal Click Here
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Page No. 31 to 37