Browsing FEF  Makale Koleksiyonu  Matematik Bölümü / Department of Mathematics by Access Type "info:eurepo/semantics/closedAccess"
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Algebraic connectivity and degree sequences of trees
(Elsevier Science Inc, 20090115)We investigate the structure of trees that have minimal algebraic connectivity among all trees with a given degree sequence. We show that such trees are caterpillars and that the vertex degrees are nondecreasing on every ... 
Amplitude modulation of nonlinear waves in a fluidfilled tapered elastic tube
(Elsevier Science Inc, 20040715)In the present work, treating the arteries as a tapered, thin walled, long and circularly conical prestressed elastic tube and using the reductive perturbation method, we have studied the amplitude modulation of nonlinear ... 
Amplitude modulation of nonlinear waves in a fluidfilled tapered elastic tube
(WileyV C H Verlag, 2003)In the present work, treating the arteries as a tapered, thin walled, long, and circularly conical prestressed elastic tube and using the reductive perturbation method, we have studied the amplitude modulation of nonlinear ... 
Amplitude modulation of nonlinear waves in fluidfilled tapered tubes
(Consultants Bureau, 200312)We study the modulation of nonlinear waves in fluidfilled prestressed tapered tubes. For this, we obtain the nonlinear dynamical equations of motion of a prestressed tapered tube filled with an incompressible inviscid ... 
An analysis of higher order terms for ionacoustic waves by use of the modified Poincar,LighthillKuo method
(Springer India, 201510)In this work, by utilizing the modified Poincar,LighthillKuo (PLK) method, we studied the propagation of weakly nonlinear waves in a collisionless cold plasma and obtained the governing evolution equations of various ... 
Analysis of periodic and solitary waves in a magnetosonic quantum dusty plasma
(Springer, 202106)The propagation of nonlinear magnetosonic waves in electron–ion–dust (complex) plasmas has been studied by considering the effects of Bohm potential in the presence of an external magnetic field. By using the quantum ... 
Analytical solution for nonplanar waves in a plasma with qnonextensive nonthermal velocity distribution:Weighted residual method
(Elsevier Ltd, 202001)The basic nonlinear equations describing the dynamics of a two component plasma consisting of cold positive ions and electrons obeying hybrid q nonextensive nonthermal velocity distribution are examined in the ... 
An analytical solution to the dissipative nonlinear Schrodinger equation
(Elsevier Science, 20031220)Motivated with a solitary wave type of solution to the nonlinear Schrodinger (NLS) equation, in this work we shall seek a travelling wave solution to the dissipative NLS equation by use of the hyperbolic tangent method. ... 
An application of modified reductive perturbation method to long water waves
(PergamonElsevier Science Ltd, 201112)In this work, we extended the application of "the modified reductive perturbation method" to long water waves and obtained the governing equations as the KdV hierarchy. Seeking a localized travelling wave solutions to these ... 
An application of multipletime scale perturbation method to nonlinear ionacoustic waves
(Physical Soc Japan, 201202)In this work, by utilizing the multipletime scale expansion method, we studied the propagation of weakly nonlinear waves in a collisionless cold plasma and obtained the governing evolution equations of various order terms ... 
Blowup and global existence for a general class of nonlocal nonlinear coupled wave equations
(Academic Press Inc Elsevier Science, 20110201)We study the initialvalue problem for a general class of nonlinear nonlocal coupled wave equations. The problem involves convolution operators with kernel functions whose Fourier transforms are nonnegative. Some wellknown ... 
The boundary layer approximation and nonlinear waves in elastic tubes
(PergamonElsevier Science, 200009)In the present work, employing the nonlinear equations of an incompressible, isotropic and elastic thin tube and approximate equations of an incompressible viscous fluid, the propagation of weakly nonlinear waves is examined. ... 
The Cauchy problem for a class of twodimensional nonlocal nonlinear wave equations governing antiplane shear motions in elastic materials
(IOP Publishing Ltd, 201104)This paper is concerned with the analysis of the Cauchy problem of a general class of twodimensional nonlinear nonlocal wave equations governing antiplane shear motions in nonlocal elasticity. The nonlocal nature of the ... 
A certain class of harmonic mappings related to functions of bounded boundary rotation
(Eudoxus Press, 201405)Let V(k) be the class of functions with bounded boundary rotation and let SH be the class of sensepreserving harmonic mappings. In the present paper we investigate a certain class of harmonic mappings related to the ... 
A certain class of starlike logharmonic mappings
(Elsevier Science BV, 201411)In this paper we investigate some properties of logharmonic starlike mappings. For this aim we use the subordination principle or Lindelof Principle (Lewandowski (1961) [71). 
Characteristic classes of foliations via SAYDtwisted cocycles
(European Mathematical Society, 2015)We find the first non trivial “SAYDtwisted” cyclic cocycle over the groupoid action algebra under the symmetry of the affine linear transformations of the Euclidian space. We apply the cocycle to construct a characteristic ... 
A characteristic map for compact quantum groups
(Springer Heidelberg, 201709)We show that if G is a compact Lie group and g is its Lie algebra, then there is a map from the Hopfcyclic cohomology of the quantum enveloping algebra Uq(g) to the twisted cyclic cohomology of quantum group algebra ... 
Classification of surfaces in a pseudosphere with 2type pseudospherical Gauss map
(WileyV C H Verlag GMBH, 201711)In this article, we study submanifolds in a pseudosphere with 2type pseudospherical Gauss map. We give a characterization theorem for Lorentzian surfaces in the pseudosphere S2(4) subset of E2(5) with zero mean curvature ... 
Closing the gap in the purely elliptic generalized DaveyStewartson system
(PergamonElsevier Science Ltd, 20081015)In this note we improve the results presented previously on global existence and global nonexistence for the Solutions of the purely elliptic generalized DaveyStewartson system. These results left a gap in the parameter ... 
A complex travelling wave solution to the KdVBurgers equation
(Elsevier Science bv, 20050919)In the present work, making use of the hyperbolic tangent method a complex travelling wave solution to the KdVBurgers equation is obtained. It is observed that the real part of the solution is the combination of a shock ...