Search Results - "Liu, Guanggang"
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Periodic solutions of second order Hamiltonian systems with nonlinearity of general linear growth
Published in Electronic journal of qualitative theory of differential equations (01-01-2021)“…In this paper we consider a class of second order Hamiltonian system with the nonlinearity of linear growth. Compared with the existing results, we do not…”
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Multiplicity of Periodic Solutions for a Class of New Super-quadratic Damped Vibration Problems
Published in Journal of dynamical and control systems (01-10-2023)“…In this paper, we study the following damped vibration problem x ̈ + ( q ( t ) I N × N + B ) x ̇ + 1 2 q ( t ) B − A ( t ) x + H x ( t , x ) = 0 , t ∈ ℝ , x (…”
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3
Periodic solutions for a class of asymptotically linear damped vibration problems with resonance at infinity
Published in Qualitative theory of dynamical systems (01-11-2024)“…In this paper, we consider a class of asymptotically linear damped vibration problems with resonance at infinity. Compared with the existing results, under…”
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4
Existence of Homoclinic Solutions for a Class of Damped Vibration Problems
Published in Qualitative theory of dynamical systems (01-06-2022)“…In this paper, we consider the existence of homoclinic solution for a class of damped vibration problem x ¨ ( t ) + ( q ( t ) I N × N + B ) x ˙ ( t ) + 1 2 q (…”
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5
Infinitely many homoclinic solutions for a class of damped vibration problems
Published in Electronic journal of qualitative theory of differential equations (01-01-2022)“…In this paper, we consider the multiplicity of homoclinic solutions for the following damped vibration problems x ¨ ( t ) + B x ˙ ( t ) − A ( t ) x ( t ) + H x…”
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6
Semilinear elliptic equations with dependence on the gradient
Published in Electronic journal of differential equations (19-08-2012)“…In this article we consider elliptic equations whose nonlinear term depends on the gradient of the unknown. We assume that the nonlinearity has a…”
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7
Existence and multiplicity of rotating periodic solutions for Hamiltonian systems with a general twist condition
Published in Journal of Differential Equations (05-10-2023)“…In this paper, we consider rotating periodic solutions of the Hamiltonian systemx˙=JH′(t,x),x∈R2N, having the form x(t+T)=Qx(t),∀t∈R, for some T>0 and a…”
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8
Rotating periodic solutions for asymptotically linear second‐order Hamiltonian systems with resonance at infinity
Published in Mathematical methods in the applied sciences (01-12-2017)“…In this paper, we consider a class of asymptotically linear second‐order Hamiltonian system with resonance at infinity. We will use Morse theory combined with…”
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9
Infinitely Many Rotating Periodic Solutions for Second-Order Hamiltonian Systems
Published in Journal of dynamical and control systems (15-04-2019)“…In this paper, we consider a class of second-order Hamiltonian system in ℝ N with combined nonlinearities. We will study the multiplicity of rotating periodic…”
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10
Multiplicity of Solutions for Kirchhoff-Type Problem with Two-Superlinear Potentials
Published in Bulletin of the Malaysian Mathematical Sciences Society (15-07-2019)“…In this paper we consider a class of Kirchhoff-type problem with 2-superlinear potentials. The existence of one positive solution and one negative solution…”
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11
Sign-Changing Solutions for Semilinear Elliptic Equations with Dependence on the Gradient Via the Nehari Method
Published in Mediterranean journal of mathematics (01-06-2017)“…In this paper, we consider a class of elliptic equation with dependence on the gradient. The existence of sign-changing solutions is established via the Nehari…”
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12
The existence of seven solutions for a superlinear elliptic boundary value problem without symmetries
Published in Complex variables and elliptic equations (01-02-2017)“…In this paper we study the multiplicity of nontrivial solutions for a superlinear elliptic boundary value problem. By combining truncation techniques, minimax…”
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13
Existence and multiplicity results for partially superquadratic elliptic systems
Published in Applied mathematics letters (01-02-2013)“…In this paper we establish the existence and multiplicity of solutions for a class of partially superquadratic elliptic systems by using the Morse theory…”
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14
Multiplicity result for asymptotically linear noncooperative elliptic systems
Published in Mathematical methods in the applied sciences (01-08-2013)“…In this paper, we obtain a multiplicity result for a class of asymptotically linear noncooperative elliptic systems by using saddle point reduction technique…”
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