Department of Mathematics (Math.): Recent submissions

Now showing items 21-40 of 70

Iterated Local Search Approaches for Maximin Latin Hypercube Designs

Dey, Aparna (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2012-07)

Many scientific phenomena are now investigated by experimental design. In the field of experimental design problems we consider maximin Latin Hypercube Designs (LHDs). Problems are formulated as optimization ones. Optimal ...
Steady MHD Free Convection Heat and Mass Transfer Flow about a Vertical Porous Surface with Thermal Diffusion and Induced Magnetic Field

Afruz-zaman, Md. (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2014-08)

In this study the thermal diffusion effect on the steady laminar free convection flow and heat transfer of viscous incompressible MHD electrically conducting fluid above a vertical porous surface is considered under the ...
Viscous Dissipation and Joule Heating Effects on MHD Combined Heat and Mass Transfer Flow Through a Porous Medium in a Rotating System

Hossain, Md. Delowar (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2006-07)

Viscous dissipation and Joule heating effects on MHD combined heat and mass transfer flow through a porous medium in a rotating system has been studied numerically. Nacthsheiin-Swigert iteration technique is used as the ...
A Study on Complemented Lattices and Boolean Function

Das, Kishore Kumar (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2010-06)

In this thesis the nature of Complemented lattice and Boolean function is studied. Lattice theory is a part of Mathematics. In Modern algebra, Abstract algebra and Boolean function are Lattice theory play important role. ...
Optimality Analysis on the Basis of Rectangular (Manhattan) Distance Measure for Maximin LHDs Obtained by the Iterated Local Search Heuristics Approach

Ali, Md. Ishaque (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2015-06)

Design of Experiment (DoE) is an important issue for developing mathematical model of any physical problem especially when there exist large numbers of factors. Optimal Latin Hypercube Design (LHD) is one of the well-known ...
On Some Analytical Approximate Solutions of Fourth Order Damped Oscillatory and Near Critically Damped Nonlinear Systems

Rahman, Md. Habibur (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2009-03)

At first Krylov and Bogoliubov prcseflted a perturbation method known as the asymptotic averaging method' in the theory of nonlinear oscillations. Primarily, the method was proposed only to get the periodic solutions of ...
A Study of Single and Multi Step Methods To Solve Differential Equations

Khanam, Mary (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2011-04)

Here the task was to study single and multi step methods to solve differential equations. As Rungc-Kutta method. a single step method has some property to represent a larnily so attention has been given to that method. It ...
A Study of Sectionally Pseudocomplemented Lattice & Boolean Algebra

Hasan, Md. Nazmul (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2011-02)

This thesis studies the nature of a sectionally pesudocomplemented lattice and Boolean Algebra. Lattice theory is a part of Mathematics. Boolean algebra and Boolean function is an important of lattice theory. A nonempty ...
Study of Hybrid Evolutionary Computation Techniques for Solving Large Set of Linear Equations and Partial Differential Equations

Moniruzzaman, G. M. (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2010-10)

Hybrid Algorithms for solving set of linear equations are hybridization of evolutionary techniques and classical methods for solving set of linear equations. The classical iterative methods for solving set of linear equations ...
Fuzzy Supra Topological Spaces

Molla, Md. Yahia (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2007-11)

American Mathematician Lotfi A. Zadeh in 1965 first introduced the concept of fuzzy set. He interpreted a fuzzy set on a set as a mapping from the set into the unit interval I= [0.1], which is a generalization of the ...
On Some Asymptotic Solutions of Fourth Order Critically Damped Nonlinear Systems

Haque, B. M. Ikramul (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2008-01)

Krylov and Bogoliubov introduced a perturbation method named "asymptotic averaging method". The method was developed only to obtain the periodic solution of second order nonlinear differential systems. Now the method is ...
Numerical Investigation of Heat and Mass Transfer by Mixed Convection Flow from a Vertical Porous Plate with Induced Magnetic Field, Constant Heat and Mass Fluxes

Islam, Mohammad Rafiqul (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2007-06)

Combined heat and mass transfer by mixed convection flow from a vertical porous plate with induced magnetic field, constant heat and mass fluxes has been studied. Nachtsheim Swigert iteration technique is used as the main ...
Study of Pseudocomplemented Lattice

Rahman, Khaki Masudur (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2008-06)

This thesis studies the nature of Pseudocomplemented lattice. We can define a lattice in two ways; (i) Set theoretically and (ii) Algebraically. Set theoretically: A poset <L; ≤ > is a lattice if for every a, b ϵ L both ...
Study on Modular Lattice and Boolean Algebra

Islam, Md. Rashidul (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2008-04)

This thesis studies extensively the nature of modular lattices and Boolean algebras. The modular lattices have been study by several authors including Abbott [2] , Birkhoff [ 3] and Rutherford [19 ]. A poset is said to ...
Steady MHD Free Convection and Mass Transfer Flow with Thermal Diffusion, Dufour Effect and Large Suction

Azad, Md. Abul Kalam (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2006-09)

The numerical studies are performed to examine the MHD free convection and mass transfer flow with thermal diffusion and dufour effects past an infinite vertical porous plate. Method of Superposition and the Shooting method ...
Study on Distributive Lattices and Boolean Algebras

Rahman, Md. Zaidur (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2006-04)

In this thesis we have studied the nature of distributive Lattice and Boolean Algebra. Lattice theory is branch of Mathematics. A poset (L,≤) is said to be form a Lattice if for every a,b ϵ L,a ˅b and a˄b exist in L. where ...
Steady MHD Free Convection and Mass Transfer Flow with Thermal Diffusion, Hall and Ion Slip Currents and Large Suction

Azad, Md. Abul Kalam (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2006-04)

The present study is concerned with the study of steady MHD free convection and mass transfer flow past an impulsively started infinite vertical porous plate with thermal diffusion when a strong magnetic field of uniform ...
On MHD Flows of Viscous Incompressible Fluids

Rahman, Fouzia (Banaras Hindu University, Varanasi, India, 1986-08)

The presented thesis entitled “ON MHD FLOWS OF VISCOUS INCOMPRESSIBLE FLUIDS” is being presented for the award of the degree of Doctor of Philosophy in Mathematics. It is the outcome of my researches conducted in the ...
A Study on Distributive Nearlattices

Rahman, Md. Bazlar (Rajshahi University, Rajshahi, Bangladesh, 1994-08)

This thesis studies the nature of distributive nearlattices. By a nearlattice S we will always mean a (lower) semilattice which has the property that any two elements possessing a common upper bound, have a supremum, Cornish ...
Study of Principal n-ideals of a Lattice

Azad, Md. Abul Kalam (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh, 2006-07)

This thesis studies extensively the Principal n-ideals of a lattice. The idea of n-ideals in a lattice was first introduced by Cornish and Noor in studying the kernels around a particular element n, of a skeletal congruence ...

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