Mathematics
Browse by
Recent Submissions

On the propagation of acceleration waves in vibrational and radiative nonequilibrium magnetogasdynamic flows
(1994)The effect of magnetic field on the propagation of acceleration waves in vibrational and radiative nonequilibrium gas flows, which is induced by the motion of a piston advancing with finite acceleration into a constant ... 
Dynamic interaction between boundary layer flow and groundwater flow separated by a porous bed
(1994)This paper examines the problem of dynamic interaction between a steadystate axisymmetric boundary layer flow over a fluidsaturated porous bed and a uniform Darcy flow occurring in the bed. The analysis is based on the ... 
Buoyancyinduced flow of nonnewtonian fluids in a porous medium past a vertical flat plate with nonuniform surface heat flux
(1994)Steady buoyancyinduced flow of a nonNewtonian fluid in a porous medium bounded by a vertical flat plate with prescribed variable wall heat flux is investigated analytically by KarmanPohlhausen integral method and ... 
Convective heat transfer across a horizontal impermeable partition
(1994)The aim of this paper is to study the natural convection flow on both sides of an impermeable horizontal partition separating two semiinfinite fluid saturated porous reservoirs maintained at different temperatures. As a ... 
Free convection about axisymmetric bodies immersed in inhomogeneous porous medium
(1994)The problem of free convective heat transfer from a nonisothermal axisymmetric body immersed in an inhomogeneous porous medium is analysed on the basis of boundary layer approximations. An approximate method based on the ... 
On the generalized forms of exact solutions to the liouville equation via direct approach
(1994)Using the direct approach due to Clarkson and Kruskal [1] two generalized forms of exact solutions to the Liouville equation are presented that eventually enable recovering all available exact solutions obtained via group ... 
Transient free convection in a fluid saturated porous media with temperature dependent viscosity
(1994)The effect of temperature dependent viscosity on the heat transfer rate for a transient free convection in a porous medium adjacent to a vertical flat surface is studied. Solutions are obtained numerically by a suitable ... 
Functional networks for CAD problems
(2002)There are some basic real life problems that cannot be solved using classical mathematical techniques. In this paper functional networks have been effectively used to solve practical CAD problems related to plant engineering ... 
Performance analysis of a protocol for real time token ring FOLAN
(1998)An extended IEEE 802.5 protocol suitable for transmitting time constrained messages in real time token ring fibre optic local area networks has been proposed and analysed for its performance subsequently. It differs from ... 
Performance analysis of a protocol for real time token ring FOLAN
(1998)An extended IEEE 802.5 protocol suitable for transmitting time constrained messages in real time token ring fibre optic local area networks has been proposed and analysed for its performance subsequently. It differs from ... 
Blockcoded modulation using twolevel group codes over generalized quaternion groups
(1999)A length n group code over a group G is a subgroup of Gn under componentwise group operation. Twolevel group codes over the class of generalized quaternion groups, Q(2m), m⩾3, are constructed using a binary code and ... 
Block coded modulation using twolevel group codes over generalized quaternion groups
(1997)This paper deals with Euclidean space codes obtained from twolevel group codes of length n over a generalized quaternion group Q m, m⩾3, with 2m elements, with generators x and y, given by the presentation ... 
Novel view synthesis using a translating camera
(2005)This paper addresses the problem of synthesizing novel views of a scene using images taken by an uncalibrated translating camera. We propose a method for synthesis of views corresponding to translational motion of the ... 
A new customized document categorization scheme using rough membership
(2005)One of the problems that plague document ranking is the inherent ambiguity, which arises due to the nuances of natural language. Though two documents may contain the same set of words, their relevance may be very different ... 
A feature selection technique for classificatory analysis
(2005)Patterns summarizing mutual associations between class decisions and attribute values in a preclassified database, provide insight into the significance of attributes and also useful classificatory knowledge. In this paper ... 
Matrix games with fuzzy goals and fuzzy payoffs
(2005)A two person zero sum matrix game with fuzzy goals and fuzzy payoffs is considered and its solution is conceptualized using a suitable defuzzification function. Also, it is proved that such a game is equivalent to a ... 
Group theoretic method for a converging shock wave problem
(1999)Group theoretic method is used to study the classes of cylindrically symmetric similar motion of a nonequilibrium gasdynamic flow under the influence of magnetic field. The profiles of flow and field variables have been ... 
An (m, M) machine repair problem with spares and state dependent rates: A diffusion process approach
(1997)The diffusion approximation model for (m, M) general machine repair problems with spare part support has been developed. The interfailure time and repair times are assumed to be generally identically and independently ... 
Numerical solution of the Kortewegde Vries (KdV) equation
(1997)A numerical method is developed for solving the Kortewegde Vries (KdV) equation ut − 6uux + uxxx = 0 by using splitting method and quintic spline approximation technique. The convergence, stability and accuracy of the ... 
A roughfuzzy document grading system for customized text information retrieval
(2003)Due to the large repository of documents available on the web, users are usually inundated by a large volume of information, most of which is found to be irrelevant. Since user perspectives vary, a clientside text filtering ... 
Duality in linear programming with fuzzy parameters and matrix games with fuzzy payoffs
(2003)A dual for linear programming problems with fuzzy parameters is introduced and it is shown that a two person zero sum matrix game with fuzzy payoffs is equivalent to a primal–dual pair of such fuzzy linear programming ... 
A linear time recognition algorithm for proper interval graphs
(2003)We propose a linear time recognition algorithm for proper interval graphs. The algorithm is based on certain ordering of vertices, called bicompatible elimination ordering (BCO). Given a BCO of a biconnected proper interval ... 
Influence of secondary flow on diffusion with heterogeneous reaction
(2003)The concentration distribution in a Newtonian fluid for the secondary flow in a curved tube with bulk/wall reaction is obtained for a range of parameter values using an axially marching spectral finite difference scheme. ... 
A note on a theorem of Erds & Gallai
(2003)We show that the Erds–Gallai condition characterizing graphical degree sequences of length p needs to be checked only for as many n as there are distinct terms in the sequence, not all n,1≤n≤p. 
CS matrix rings over local rings
(2003)Complete characterization of CS matrix rings Mn(R), n>1, over local rings R is obtained. Application to group algebras is derived as a particular case of the main result. 
On certain classes of exact solutions of einstein equations for rotating ﬁelds in conventional and nonconventional form
(2003)Using the symmetry reduction approach we have herein examined, under continuous groups of transformations,the invariance of Einstein exterior equations for stationary axisymmetric and rotating case, in conventional and ... 
On duality in linear programming under fuzzy environment
(2002)A pair of linear primal–dual problems is introduced under fuzzy environment and appropriate results are proved to establish the duality relationship between them. Possible extensions are also suggested. 
Species extinction problem: genetic vs ecological factors
(2001)Conservation biologists have been facing an intriguing question: whether it is genetic or ecological factors which govern the ecological systems. In this paper, we have constructed a few model systems describing real ...