• Study of Radicals and Semisimple Classes of Rings 

  Dey, Kalyan Kumar (University of Rajshahi, 2002)

  The concept of the radical of a ring was introduced by Artin for rings with the descending chain condition with a view to obtaining a nice structure theorem for the ring. The idea was to single out the Toblerone part, of ...
• Analytical Methods to Investigate Exact Solutions for Space-Time Fractional Differential Equations Arising in the Real Physical Phenomena of Mathematical Physics and Biology 

  Rahman, Zillur (University of Rajshahi, Rajshahi, 2021)

  Fractional derivatives are most important to accurate nonlinear modeling of various real-world difficulties in applied nonlinear science and engineering incidents especially in the fields of crystal, optics and quantum ...
• On Generalizations of Separation Properties, Compactness and Connectedness 

  Biswas, Sanjoy Kumar (University of Rajshahi, 2019)

  The thesis is concerned with generalizations of some important and interesting properties of separation, compactness and connectedness in a span of seven chapters. In the first chapter pseudo regular and pseudo normal ...
• On Generalizations of Separation properties, Compactness and Connectedness 

  Biswas, Sanjoy Kumar (University of Rajshahi, Rajshahi, 2019)

  The thesis is concerned with generalizations of some important and interesting properties of separation, compactness and connectedness in a span of seven chapters. In the first chapter pseudo regular and pseudo normal ...
• Investigation of the Soliton and Multi-soliton Solutions of nonlinear evolution equations In Mathematical Physics 

  Hossen, Md. Belal (University of Rajshahi, Rajshahi, 2020)

  Nonlinear evolution equations (NLEEs) play a noteworthy role in various scientific and engineering fields such as applied mathematics, plasma physics, fluid dynamics, optical fibers, biology, solid state physics, chemical ...
• An analytical method for finding exact Traveling wave solutions of some nonlinear Evolution equations (nlees) in biological and Mathematical problems 

  Ullah, Mohammad Safi (University of Rajshahi, Rajshahi, 2021)

  Most of the natural happenings can be present by nonlinear modeling. The soliton theory is a highly effective section of nonlinear sciences that includes soliton, multi-soliton, rational, breather line, breather kinky, ...
• A study on Extended Newton-type Methods for Variational Inclusions 

  Khaton, Mst. Zamilla (University of Rajshahi, Rajshahi, 2021)

  In this work, we deal with the two types of variational inclusions. Firstly, we consider the variational inclusion problem of the form 0 ∈ ζ(¯s) + g(¯s) + ξ(¯s), (A) where S and T are Banach spaces, ζ : S → T is ...
• Compactness and Connectedness Concept in Intuitionistic Fuzzy Topological Spaces 

  Mahbub, Md. Aman (University of Rajshahi, 2020-12)

  The fundamental concept of a fuzzy set and fuzzy set operations was first introduced by L. A. Zadeh (Zadeh, 1965) in 1965 and it provides a natural foundation for treating mathematically the fuzzy phenomena, which exists ...
• Theoretical Investigations of Turbulence and Magneto-Hydrodynamic Turbulence in Incompressible Fluid 

  Islam, Md. Anowarul (University of Rajshahi, 2001)

  The thesis entitled "Theoretical investigations of turbulence and Magnetohydrodynamic turbulence in incompressible fluid" is being presented for the award of the degree of Doctor of Philosophy in Mathematics. It is the ...
• Studies of Spinning Particles in Curved Spacetimes 

  Banu, Akhtara (University of Rajshahi, 2010)

  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 ...
• Analytical Invcstlgations in Tubulent and IVIlID Tttdmlent Flow 

  Rahman, Md. Lutfor (198)

  The thesis entitled "Analytical Investigations in Turbulent and MHD Turbulent Flow" is being presented for the award of the degree of Doctor of Philosophy in Mathematics. It is the outcome of my research conducted in the ...
• A Study on Finitely Generated N-Ideals of a Lattice 

  Ali, Md. Ayub (University of Rajshahi, 1998)

  This thesis studies extensively the finitely generated 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 ...
• A Study of Characterization of Some Regular Gamma Rings 

  Nazneen, Ayesha (University of Rajshahi, 2003)

  The present thesis entitled, "A Study of Characterization of Some Regular Gamma Rings " is the outcome of researches carried out by me under the close supervision of Dr. Akhil Chandra Paul, Professor, Department of ...
• Spinning Particles in Curved Spacetime of General Relativity 

  Ali, M. Hossain (University of Rajshahi, 2001)

  In Introduction we give a brief account of our work of studying spinning particles in curved spacetime of General Relativity. In Chapter I we discuss the relevant equations for the motion of spinning particles in curved ...
• Effects of Air Bubbles on Storm Surge 

  Rahman, Md. Azizur (University of Rajshahi, 2011)

  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 ...
• N-Ideals of a Lattice 

  Latif, Md. Abdul (University of Rajshahi, 1994)

  This thesis studies the nature of n-ideals of a lattice. The topic arose out of a study on the kernels, around a particular element n, of a skeletal congruence on a distributive lattice. The idea of n-ideals in a lattice ...
• Investigation of some aspects of protoplanetary model of planetary formation 

  Paul, Gour Chandra (University of Rajshahi, 2005)

  In this thesis we have investigated some aspects of the protoplanetary theory of planetary formation, namely, the structure of a protoplanet, sedimentation of heavy elements in a protoplanet, and the effect of mass loss ...
• Characterizations of Some Radical Rings and Gamma Rings 

  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. ...
• A Study on Interval Solutions of Nonlinear Systems 

  Mollah, Md. Shirazul Hoque (University of Rajshahi, 2011)

  Suppose we seek a solution of the nonlinear system f(x={f;(x1,x2, ..., Xn)} = 0 i = 1,2, ..., n where f1, f2, f3, ...
• An Analytical and Numerical Study on Fixed Point Theorems 

  Asaduzzaman, Md. (University of Rajshahi, 2011)

  Fixed point theory has fascinated hundreds of researchers since 1922 with the celebrated Banach's fixed point theorem. There exists a vast literature on the topic and this is a very active field of research at present. Let ...

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