Hossain, Mohd. Altab(University of Rajshahi, 2006)
Classification is a deep and fundamental problem in every branch of Mathematics. Although an uphill task, this target has been achieved in a number of cases in different fields. In general, the strategy for this grand ...
In many branches of Mathematics, a strategy for study of the mathematical entities is to view them as being made up of simpler entities in one or more ways. The task is then divided into two parts: (i) identifying and ...
The various topological concepts and properties like openness, closedness, continuity, compactness, connectedness etc. have been generalised by mathematicians. In this thesis we have studied these generalisations and made ...
Rashid, Md. Mahbubur(University of Rajshahi, 2006)
The present thesis entitled "Characterizations of Some Radical Rings and Gamma Rings" is the outcome of the research by me under the supervision of Dr. A. C. Paul, Professor, Department of Mathematics, University of Rajshahi. ...
There are many approaches for approximating solutions of nonlinear vibrating problems. The most common methods for constructing approximate analytical solutions to the nonlinear vibrating problems are the perturbation ...
We first present a brief ideas and principles in "Fluid Mechanics" which may serve as the background materials of viscous, incompressible laminar Newtonian or non-Newtonian fluid flow problems considered in the present ...
Begum, Shamsun Naher(University of Rajshahi, 2010)
This thesis Centre’s on a class of certain pseudo complemented partial lattices. This partial lattice is said to be a JP-semilattice. An algebraic structure S = (S, /\, V), where (S, /\) is a semilattice and V is a partial ...
Most of the perturbation methods are developed to find the periodic solutions of nonlinear systems with small nonlinearities, transients are not considered. In 1947, first Russian scientists Krylov and Bogo Liubov introduced ...
We investigate the motion of spinning particles, such as Dirac fermions, in curved spacetimes by pseudo-classical mechanics models in which the spin degrees of freedom are characterized in terms of anti-commuting Grassmann ...
The development of real time operational surge prediction system in the Bay of Bengal incorporating air bubble effects is still limited and is needed immediate attention. In this respects the study has been focused the ...
After a short review of spacetime singularities, blackholes, we introduce one with the laws of blackhole mechanics and the laws of ordinary thermodynamics. We discuss the remarkable analogy between the laws of blackhole ...
Almost all perturbation methods are developed to find periodic solutions of nonlinear system where transients are not considered. First Krylov and Bogoliubov introduced a perturbation method which is well known as “asymptotic ...
Gamma ring was first introduced by N. Nobusawa as a generalization of a classical
ring. W. E. Barnes generalized the definition of a gamma ring due to Nobusawa.
Presently the gamma ring due to Barnes is known as a gamma ...
Heat transfer in enclosure in which the influence of free (natural) and forced
convection (mixed convection) are of comparable magnitude occurs frequently in
engineering situations. The applications include the heat ...
A topological space is a non-empty set X together with a collection T of subsets of X satisfying the conditions: (i) X, T, (ii) the union of any class of sets in T belongs to T,
(iii) The intersection ...
We study quantum mechanical aspect of black holes. We give a brief re view of black hole radiation which is commonly called Hawking radiation. So far several different methods have been employed to investigate this radiation ...
In 1965, Zadeh[150] introduced to the world the term fuzzy set(FS), as a formalization of vagueness and partial truth, and represents a degree of membership for each member of the universe of discourse to a subset of it. ...
Talukder, Md. Abdul Mottalib(University of Rajshahi, 2015)
The fundamental concept of a fuzzy set and fuzzy set operations was first introduced
by L. A. Zadeh [175] in 1965 and it provides a natural foundation for treating
mathematically the fuzzy phenomena, which exists pervasively ...
The present thesis entitled, "CHARACTERIZATIONS OF K-DERIVATIONS AND BI-DERIVATIONS ON LIE IDEALS OF GAMMA RINGS" is the outcome of researches carried out by me under the close supervisions of Dr. Akhil Chandra Paul, ...