Browsing FEF  Makale Koleksiyonu  Matematik Bölümü / Department of Mathematics by Title
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Timelike rotational surfaces of elliptic, hyperbolic and parabolic types in minkowski space E1(4) with pointwise 1type gauss map
(University of Nis, 2015)In this work, we focus on a class of timelike rotational surfaces in Minkowski space E1(4) with 2dimensional axis. There are three types of rotational surfaces with 2dimensional axis, called rotational surfaces of ... 
Topological Hopf algebras and their Hopfcyclic cohomology
(Taylor and Francis, 20190129)A natural extension of the Hopfcyclic cohomology, with coefficients, is introduced to encompass topological Hopf algebras. The topological theory allows to work with infinite dimensional Lie algebras. Furthermore, the ... 
A travelling wave solution to the KdVBurgers equation
(Elsevier Inc, 20040715)In the present work, by introducing a new potential function and by using the hyperbolic tangent method and an exponential rational function approach, a travelling wave solution to the KdVBurgers (KdVB) equation is ... 
Tulczyjew's triplet for Lie groups III: higher order dynamics and reductions for iterated bundles
(Serbian Society of Mechanics, 2021)Given a Lie group G, we elaborate the dynamics on T*T*G and T*TG, which is given by a Hamiltonian, as well as the dynamics on the Tulczyjew symplectic space TT * G, which may be defined by a Lagrangian or a Hamiltonian ... 
Two remarks on a generalized DaveyStewartson system
(Elsevier Ltd, 20060301)We present two results on a generalized DaveyStewartson system, both following from the pseudoconformal invariance of its solutions. In the hyperbolicellipticelliptic case, under some conditions on the physical parameters, ... 
Twodimensional wave packets in an elastic solid with couple stresses
(PergamonElsevier Science Ltd, 200408)The problem of (2+1) (two spatial and one temporal) dimensional wave propagation in a bulk medium composed of an elastic material with couple stresses is considered. The aim is to derive (2+1) nonlinear model equations ... 
Variable coefficient modified KdV equation in fluidfilled elastic tubes with stenosis: Solitary waves
(PergamonElsevier Science Ltd, 20091015)In the present work, treating the arteries as a thin walled prestressed elastic tube with variable radius, and using the longwave approximation, we have studied the propagation of weakly nonlinear waves in such a fluidfilled ... 
Waves in an elastic tube filled with a heterogeneous fluid of variable viscosity
(PergamonElsevier Science Ltd, 200907)By treating the artery as a prestressed thin elastic tube and the blood as an incompressible heterogeneous fluid with variable viscosity. we studied the propagation of weakly nonlinear waves in such a composite medium ... 
Waves in fluidfilled elastic tubes with a stenosis: Variable coefficients KdV equations
(Elsevier B.V., 20070515)In the present work, by treating the arteries as thinwalled prestressed elastic tubes with a stenosis and the blood as an inviscid fluid we have studied the propagation of weakly nonlinear waves in such a medium, in the ... 
Weakly nonlinear waves in a fluidfilled elastic tube with variable prestretch
(PergamonElsevier Science Ltd, 200811)In the present work, by utilizing the nonlinear equations of motion of an incompressible, isotropic thin elastic tube subjected to a variable prestretch both in the axial and the radial directions and the approximate ... 
Weakly nonlinear waves in a tapered elastic tube filled with an inviscid fluid
(PergamonElsevier Science Ltd, 200507)In the present work, treating the artery as a tapered, thin walled, long and circularly conical prestressed elastic tube and using the longwave approximation, we have studied the propagation of weakly nonlinear waves in ... 
Weakly nonlinear waves in a fluid with variable viscosity contained in a prestressed thin elastic tube
(PergamonElsevier Science Ltd, 200804)In this work, treating the artery as a prestressed thin elastic tube and the blood as an incompressible Newtonian fluid with variable viscosity which vanishes on the boundary of the tube, the propagation of nonlinear waves ... 
Weakly nonlinear waves in a linearly tapered elastic tube filled with a fluid
(PergamonElsevier Science Ltd, 200401)In the present work, treating the arteries as a tapered, thinwalled, long and circularly conical prestressed elastic tube and using the longwave approximation, we have studied the propagation of weakly nonlinear waves ... 
Weakly nonlinear waves in a prestressed thin elastic tube containing a viscous fluid
(PergamonElsevier Science Ltd, 199911)In this work, we studied the propagation of weakly nonlinear waves in a prestressed thin elastic tube filled with an incompressible viscous fluid. In order to include the geometrical and structural dispersion into analysis, ... 
Weakly nonlinear waves in a viscous fluid contained in a viscoelastic tube with variable crosssection
(GauthierVillars/Editions Elsevier, 200503)In the present work, treating the arteries as a thin walled prestressed viscoelastic tube with variable crosssection, and using the longwave approximation, we have studied the propagation of weakly nonlinear waves in such ... 
Weakly nonlinear waves in elastic tubes filled with a layered fluid
(Freund Publishing House, 2002)In this work we studied the propagation of weakly nonlinear waves in a prestressed thin elastic tube filled with an incompressible layered fluid, where the outer layer is assumed to be inviscid whereas the cylindrical core ... 
Weakly nonlinear waves in water of variable depth: Variablecoefficient Kortewegde Vries equation
(PergamonElsevier Science Ltd, 201009)In the present work, utilizing the twodimensional equations of an incompressible inviscid fluid and the reductive perturbation method, we studied the propagation of weakly nonlinear waves in water of variable depth. For ...