Results 221 to 230 of about 58,761 (268)
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NONTRIVIAL SOLUTION FOR A SECOND-ORDER BOUNDARY VALUE PROBLEM WITH p-LAPLACIAN AND PERTURBATION
Advances in Differential Equations and Control Processes, 2018Summary: This paper concerns with the existence of nontrivial solutions for a second-order boundary value problem with a \(p\)-Laplacian and a perturbation. By mountain-pass theorem, some sufficient conditions for the existence of solutions for a second-order boundary value problem are obtained which show that a nontrivial solution is generated by the ...
Liu, Xi-Lan, Liu, Nan-Nan, Wu, Shan
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Mediterranean Journal of Mathematics, 2016
The existence of homoclinic orbits is studied for the class of differential equations \[ -\ddot{u}(t)+L(t)u(t)=W_u(t,u(t))+G_u(t,u(t)). \] The existence of infinitely many homoclinic solutions is proven by using the theory of Bolle's perturbation method in critical point. The paper reports some generalizations of known results.
Zhang, Liang, Tang, Xianhua, Chen, Yi
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The existence of homoclinic orbits is studied for the class of differential equations \[ -\ddot{u}(t)+L(t)u(t)=W_u(t,u(t))+G_u(t,u(t)). \] The existence of infinitely many homoclinic solutions is proven by using the theory of Bolle's perturbation method in critical point. The paper reports some generalizations of known results.
Zhang, Liang, Tang, Xianhua, Chen, Yi
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Solutions of a class of singular second-order IVPs by homotopy-perturbation method
Physics Letters A, 2007In this Letter, solutions of a class of singular initial value problems (IVPs) in the second-order ordinary differential equations (ODEs) by homotopy-perturbation method (HPM) are presented. HPM yields solutions in convergent series forms with easily computable terms, and in some cases, yields exact solutions in one iteration.
M.S.H. Chowdhury, I. Hashim
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Acta Applicandae Mathematicae, 2014
The authors investigate the periodic boundary value problem: \[ \begin{aligned} &u''(t) + V_u(t,u(t)) = 0, \quad t \in (0,T) \setminus \{s_1,\ldots,s_m\},\\ &\triangle u'(s_k) = \lambda f_k(u(s_k)) + \mu g_k(u(s_k)),\\ &u(0) - u(T) = u'(0) - u'(T) = 0, \end{aligned} \] where \(0 < s_1 < s_2 < \ldots < s_m < T\), \(f_k = \nabla F_k\), \(g_k = \nabla G_k\
Heidarkhani, Shapour +2 more
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The authors investigate the periodic boundary value problem: \[ \begin{aligned} &u''(t) + V_u(t,u(t)) = 0, \quad t \in (0,T) \setminus \{s_1,\ldots,s_m\},\\ &\triangle u'(s_k) = \lambda f_k(u(s_k)) + \mu g_k(u(s_k)),\\ &u(0) - u(T) = u'(0) - u'(T) = 0, \end{aligned} \] where \(0 < s_1 < s_2 < \ldots < s_m < T\), \(f_k = \nabla F_k\), \(g_k = \nabla G_k\
Heidarkhani, Shapour +2 more
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Acta Applicandae Mathematicae, 2009
The authors are concerned with the oscillation of a perturbed nonlinear differential equation \[ \left( a\left( t\right) \psi\left( x\left( t\right) \right) x^{\prime }\left( t\right) \right) ^{\prime}+Q\left( t,x\left( t\right) \right) =P\left( t,x\left( t\right) ,x^{\prime}\left( t\right) \right) ,\tag{1} \] where \(a\) and \(\psi\) are positive ...
Zhang, Quanxin, Wang, Lei
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The authors are concerned with the oscillation of a perturbed nonlinear differential equation \[ \left( a\left( t\right) \psi\left( x\left( t\right) \right) x^{\prime }\left( t\right) \right) ^{\prime}+Q\left( t,x\left( t\right) \right) =P\left( t,x\left( t\right) ,x^{\prime}\left( t\right) \right) ,\tag{1} \] where \(a\) and \(\psi\) are positive ...
Zhang, Quanxin, Wang, Lei
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Journal of Elasticity, 1998
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BATRA R. C. +2 more
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BATRA R. C. +2 more
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Second and third order perturbation solutions of a generalized Burgers' equation
Acta Mechanica, 1986The differential equation \(u_{\tau}-uu_ x=k(u_{xx}+cu_{x\tau})\) with initial values on \(\tau =0\) is considered. When \(c\neq 0\) this represents a hyperbolic generalization of Burgers' equation. For \(k\ll 1\) perturbation solutions are obtained, the outer solution being given completely up to third order, the inner solution (i.e.
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Differential Equations, 2023
A second-order ordinary differential equation with a three-position hysteresis relay characteristic and a periodic perturbation function is considered. The existence theorem is proved for an oscillatory solution with a complete traversal of the characteristic with a possible exit into its saturation zones in some finite time and with a closed phase ...
Yevstafyeva, V. V. +2 more
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A second-order ordinary differential equation with a three-position hysteresis relay characteristic and a periodic perturbation function is considered. The existence theorem is proved for an oscillatory solution with a complete traversal of the characteristic with a possible exit into its saturation zones in some finite time and with a closed phase ...
Yevstafyeva, V. V. +2 more
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Journal of Elasticity, 1997
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DELL'ISOLA, Francesco +2 more
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DELL'ISOLA, Francesco +2 more
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Perturbations of solutions of the sinorini problem for a second-order scalar equation
Mathematical Notes of the Academy of Sciences of the USSR, 1990See the review in Zbl 0699.35012.
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