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MONOTONE ITERATIVE TECHNIQUE FOR NONLINEAR NEUTRAL DELAY DIFFERENTIAL EQUATIONS
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作者 姜子文 庄万 《Acta Mathematica Scientia》 SCIE CSCD 1998年第3期285-292,共8页
The objective of this paper is to develop monotone techniques for obtaining extremal solutions of initial value problem for nonlinear neutral delay differential equations.
关键词 monotone iterative technique neutral delay differential equation initial value problem extremal solutions
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DELAY-DEPENDENT TREATMENT OF LINEAR MULTISTEP METHODS FOR NEUTRAL DELAY DIFFERENTIAL EQUATIONS 被引量:5
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作者 SyedKhalidJaffer Ming-zhuLiu 《Journal of Computational Mathematics》 SCIE CSCD 2003年第4期535-544,共10页
This paper deals with a delay-dependent treatment of linear multistep methods for neutral delay differential equations y'(t) = ay(t) + by(t - τ) + cy'(t - τ), t > 0, y(t) = g(t), -τ≤ t ≤ 0, a,b andc ∈... This paper deals with a delay-dependent treatment of linear multistep methods for neutral delay differential equations y'(t) = ay(t) + by(t - τ) + cy'(t - τ), t > 0, y(t) = g(t), -τ≤ t ≤ 0, a,b andc ∈ R. The necessary condition for linear multistep methods to be Nτ(0)-stable is given. It is shown that the trapezoidal rule is Nτ(0)-compatible. Figures of stability region for some linear multistep methods are depicted. 展开更多
关键词 delay-dependent stability Linear multistep methods neutral delay differential equations.
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OSCILLATION RESULTS FOR A SECOND ORDER NEUTRAL DELAY DIFFERENTIAL EQUATIONS 被引量:1
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作者 徐志庭 贾保国 马东魁 《Annals of Differential Equations》 2003年第2期229-237,共9页
Some new oscillation criteria are established for a second order neutral delay differential equations. These results improve oscillation results of Y.V. Rogo-vchenko for the retarded delay differential equations. The ... Some new oscillation criteria are established for a second order neutral delay differential equations. These results improve oscillation results of Y.V. Rogo-vchenko for the retarded delay differential equations. The relevance of our theorems is illustrated with two carefully selected examples. 展开更多
关键词 second order neutral delay differential equations OSCILLATION
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Numerical Solution for Neutral Delay Differential Equation of Constant or Proportional Type using Hybrid Block Method
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作者 Nur Inshirah Naqiah Ismail Zanariah Abdul Majid Norazak Senu 《Advances in Applied Mathematics and Mechanics》 SCIE 2022年第5期1138-1160,共23页
Neutral Delay Differential Equation(NDDE)is a differential problem that has regularly existed in numerous occurrences and has represented a significant role in dealing with real-life phenomena,especially on their appl... Neutral Delay Differential Equation(NDDE)is a differential problem that has regularly existed in numerous occurrences and has represented a significant role in dealing with real-life phenomena,especially on their application in biological and physiological processes.A fifth-order two-point hybrid implicit multistep block method(2PIH5)has been formulated in this research for the numerical solution of Neutral Delay Differential Equation(NDDE).A Taylor series interpolation polynomial has been implemented in the formulation of the proposed 2PIH5.The order,consistency,and zero-stability for 2PIH5 have been illustrated.The analyses of convergence and stability test have been performed and discussed.The initial value problems for the first-order NDDE with constant or proportional delay have been solved using the proposed block method.Some numerical results for the proposed method have been presented to prove the adaptability and applicability of the proposed method in solving NDDE.The proposed method is proved to be comparable with the other existing methods.It is assumed to be reliable and efficient for solving the first-order NDDE with constant or proportional delay. 展开更多
关键词 Constant delay hybrid method multistep block method neutral delay differential equation proportional delay
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Existence of Nonoscillatory Solutions for a Second-Order Nonlinear Neutral Delay Differential Equation
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作者 Zhen Yu GUO 《Journal of Mathematical Research and Exposition》 CSCD 2011年第3期503-508,共6页
A new second-order nonlinear neutral delay differential equation r(t) x(t) + P(t)x(t-τ) + cr(t) x(t)-x(t-τ) + F t,x(t-σ1),x(t-σ2),...,x(t-σn) = G(t),t ≥ t0,where τ 0,σ1,σ2,...,σn ≥ ... A new second-order nonlinear neutral delay differential equation r(t) x(t) + P(t)x(t-τ) + cr(t) x(t)-x(t-τ) + F t,x(t-σ1),x(t-σ2),...,x(t-σn) = G(t),t ≥ t0,where τ 0,σ1,σ2,...,σn ≥ 0,P,r ∈ C([t0,+∞),R),F ∈ C([t0,+∞)×Rn,R),G ∈ C([t0,+∞),R) and c is a constant,is studied in this paper,and some sufficient conditions for existence of nonoscillatory solutions for this equation are established and expatiated through five theorems according to the range of value of function P(t).Two examples are presented to illustrate that our works are proper generalizations of the other corresponding results.Furthermore,our results omit the restriction of Q1(t) dominating Q2(t)(See condition C in the text). 展开更多
关键词 nonoscillatory solution second-order neutral delay differential equation contraction mapping.
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NONLINEAR STABILITY OF NATURAL RUNGE-KUTTA METHODS FOR NEUTRAL DELAY DIFFERENTIAL EQUATIONS 被引量:18
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作者 Cheng-jian Zhang(Department of Mathematics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, P. R. China) 《Journal of Computational Mathematics》 SCIE EI CSCD 2002年第6期583-590,共8页
Presents the stability analysis of theoretical solutions for a class of nonlinear neutral delay-differential equations (NDDE). Discussion on the numerical analogous results of the natural Runge-Kutta (NRK) methods for... Presents the stability analysis of theoretical solutions for a class of nonlinear neutral delay-differential equations (NDDE). Discussion on the numerical analogous results of the natural Runge-Kutta (NRK) methods for the same class of nonlinear NDDE; Review of the related concepts and results on RK methods; Information on the asymptotic stability and global stability of the induced NRK method. 展开更多
关键词 nonlinear stability neutral delay differential equations natural Runge-Kutta methods
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EXISTENCE AND MANN ITERATIVE APPROXIMATIONS OF NONOSCILLATORY SOLUTIONS TO SECOND-ORDER NONLINEAR NEUTRAL DELAY DIFFERENTIAL EQUATIONS
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作者 Xiaowen Zhao Wei Jiang 《Annals of Differential Equations》 2014年第1期115-126,共12页
In this paper, we establish a few existence results of nonoscillatory solutions to second-order nonlinear neutral delay differential equations, construct several Manntype iterative approximation schemes for these nono... In this paper, we establish a few existence results of nonoscillatory solutions to second-order nonlinear neutral delay differential equations, construct several Manntype iterative approximation schemes for these nonoscillatory solutions, and give some error estimates between the approximate solutions and the nonoscillatory solutions. And finally we give an example to illustrate our results. 展开更多
关键词 neutral delay differential equations nonoscillatory solution contrac-tion mapping Mann iterative sequence error estimate
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LINEARIZED OSCILLATIONS FOR ODD-ORDERNEUTRAL DELAY DIFFERENTIAL EQUATIONSWITH ASYMPTOTIC PERIODIC COEFFICIENTS
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作者 李雪梅 申建华 《Annals of Differential Equations》 1999年第3期289-297,共9页
In this paper, we prove that, under appropriate hypotheses, the odd-order nonlinear neutral delay differential equation has the same oscillatory character as the associated linear equation with periodic coefficients O... In this paper, we prove that, under appropriate hypotheses, the odd-order nonlinear neutral delay differential equation has the same oscillatory character as the associated linear equation with periodic coefficients Our method is based on the establishment of a new comparison theorem for the oscillation of Eq.(E). Hence we prove that the parameter set such that Eq.(E) has a nonoscillatory solution is closed in certain metric space, and avoid the difficulty to set the necessary and sufficient condition for the oscillation of Eq.(E). 展开更多
关键词 asymptotic periodic coefficients neutral delay differential equation linearized oscillstion comparison theorem
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A NEW OSCILLATION CRITERION FOR FIRST ORDER NEUTRAL DELAY DIFFERENTIAL EQUATION
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作者 Zhang Yongzhen Wang Youbin (College of Math, and Information Science, Wenzhou University, Wenzhou 325000) 《Annals of Differential Equations》 2006年第3期473-476,共4页
In this paper, a new sufficient condition for the oscillation of all solutions of first order neutral delay differential equations is obtained. Secondly, the result can also be extended to a general neutral differenti... In this paper, a new sufficient condition for the oscillation of all solutions of first order neutral delay differential equations is obtained. Secondly, the result can also be extended to a general neutral differential equation, and many known results in the literatures are improved. 展开更多
关键词 neutral delay differential equation OSCILLATION characteristic equation
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CONDITIONS FOR OSCILLATION OF NEUTRAL DELAY DIFFERENTIAL EQUATIONS
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作者 Pitambar Das Chitaranjan Dash B.B. Mishra 《Annals of Differential Equations》 2009年第3期295-300,共6页
In this paper,we study one type of odd-order neutral delay differential equation. Suffcient conditions for the oscillation of every solution to this type of differential equation are given.
关键词 OSCILLATION neutral delay differential equation
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OSCILLATION THEOREMS FOR DELAY AND NEUTRAL DELAY DIFFERENTIAL EQUATIONS
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作者 P.Das B.B.Mishria C.R.Dash 《Annals of Differential Equations》 2003年第4期527-539,共13页
Oscillation criteria for the delay differential equationwhere p, T are non-negative real-valued continuous functions are investigated in the case when the numberssatisfy 0 < k < 1/e and 1/e < L < 1. The pr... Oscillation criteria for the delay differential equationwhere p, T are non-negative real-valued continuous functions are investigated in the case when the numberssatisfy 0 < k < 1/e and 1/e < L < 1. The present result improves almost all results of the literature concerning it. Furthermore, it is established that all solutions of the odd-order neutral delay differential equationwhere , are oscillatory ifThis result generalizes a theorem of Gopalsamy et. al (Czech. Math. J., 42 (1992),313-323) and also extends a very well-known result of Ladas (Applicable Analysis, 9(1979),93-98). 展开更多
关键词 OSCILLATION neutral delay differential equation
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Existence of Periodic Solutions of Nonlinear Neutral Differential Equation with Deviating Argument
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作者 任景莉 葛渭高 《Journal of Beijing Institute of Technology》 EI CAS 2002年第4期439-443,共5页
Existence criteria is established for the periodic solution of the nonlinear neutral delay differential equation x′(t)=f(t,x(t),x(t-τ 1(t)),x′(t-τ 2(t)))+p(t) by means of an abstract continuous theorem of k-set ... Existence criteria is established for the periodic solution of the nonlinear neutral delay differential equation x′(t)=f(t,x(t),x(t-τ 1(t)),x′(t-τ 2(t)))+p(t) by means of an abstract continuous theorem of k-set contractive operator and some analysis technique. 展开更多
关键词 neutral delay differential equation periodic solution Fredholm operator k-set contractive operator
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Fixed Points and Asymptotic Properties of Neutral Stochastic Delay Differential Equations
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作者 王琳 董点 《Journal of Southwest Jiaotong University(English Edition)》 2009年第2期169-173,共5页
This paper discusses a linear neutral stochastic differential equation with variable delays. By using fixed point theory, the necessary and sufficient conditions are given to ensure that the trivial solution to such a... This paper discusses a linear neutral stochastic differential equation with variable delays. By using fixed point theory, the necessary and sufficient conditions are given to ensure that the trivial solution to such an equation is pth moment asymptotically stable. These conditions do not require the boundedness of delays, nor derivation of delays. An example was also given for illustration. 展开更多
关键词 Fixed points neutral stochastic delay differential equation Variable delay Non-differentiable delay pth moment asymptotically stability Burkholder-Davis-Gundy inequality
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STABILITIES OF (A,B,C) AND NPDIRK METHODS FOR SYSTEMS OF NEUTRAL DELAY-DIFFERENTIAL EQUATIONS WITH MULTIPLE DELAYS 被引量:3
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作者 Guo-feng Zhang (Department of Mathematics, Lanzhou University, Lanzhou 730000, China) 《Journal of Computational Mathematics》 SCIE CSCD 2003年第3期375-382,共8页
Consider the following neutral delay-differential equations with multiple delays (NMDDE)where γ> 0, L, Mj and Nj are constant complex- value d×d matrices. A sufficient condition for the asymptotic stability o... Consider the following neutral delay-differential equations with multiple delays (NMDDE)where γ> 0, L, Mj and Nj are constant complex- value d×d matrices. A sufficient condition for the asymptotic stability of NMDDE system (0.1) is given. The stability of Butcher's (A,B,C)-method for systems of NMDDE are studied. In addition, we present a parallel diagonally-implicit iteration RK (PDIRK) methods(NPDIRK) for systems of NMDDE, which is easier to be implemented than fully implicit RK methods. We also investigate the stability of a special class of NPDIRK methods by analyzing their stability behaviors of the solutions of (0.1). 展开更多
关键词 neutral delay differential equations (A B C)-method RK method Parallel diagonally-implicit iteration RK method.
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Multiplicity-induced optimal gains of an inverted pendulum system under a delayed proportional-derivative-acceleration feedback 被引量:2
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作者 Zisong MEI Zaihua WANG 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2022年第11期1747-1762,共16页
This paper studies the stabilization to an inverted pendulum under a delayed proportional-derivative-acceleration(PDA)feedback,which can be used to understand human balance in quiet standing.The closed-loop system is ... This paper studies the stabilization to an inverted pendulum under a delayed proportional-derivative-acceleration(PDA)feedback,which can be used to understand human balance in quiet standing.The closed-loop system is described by a neutral delay differential equation(NDDE).The optimal feedback gains(OFGs)that make the exponential decaying rate maximized are determined when the characteristic equation of the closed-loop has a repeated real root with multiplicity 4.Such a property is called multiplicity-induced dominancy of time-delay systems,and has been discussed intensively by many authors for retarded delay differential equations(RDDEs).This paper shows that multiplicity-induced dominancy can be achieved in NDDEs.In addition,the OFGs are delay-dependent,and decrease sharply to small numbers correspondingly as the delay increases from zero and varies slowly with respect to moderate delays.Thus,the inverted pendulum can be well-stabilized with moderate delays and relatively small feedback gains.The result might be understandable that the elderly with obvious response delays can be well-stabilized with a delayed PDA feedback controller. 展开更多
关键词 human balance inverted pendulum proportional-derivative-acceleration(PDA)feedback neutral delay differential equation(NDDE) multiplicity-induced dominancy
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MEAN SQUARE STABILITY AND DISSIPATIVITY OF SPLIT- STEP THETA METHOD FOR NONLINEAR NEUTRAL STOCHASTIC DELAY DIFFERENTIAL EQUATIONS WITH POISSON JUMPS 被引量:3
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作者 Haiyan Yuan Jihong Shen Cheng Song 《Journal of Computational Mathematics》 SCIE CSCD 2017年第6期766-779,共14页
In this paper, a split-step 0 (SST) method is introduced and used to solve the non- linear neutral stochastic differential delay equations with Poisson jumps (NSDDEwPJ). The mean square asymptotic stability of the... In this paper, a split-step 0 (SST) method is introduced and used to solve the non- linear neutral stochastic differential delay equations with Poisson jumps (NSDDEwPJ). The mean square asymptotic stability of the SST method for nonlinear neutral stochastic differential equations with Poisson jumps is studied. It is proved that under the one-sided Lipschitz condition and the linear growth condition, the SST method with ∈ E (0, 2 -√2) is asymptotically mean square stable for all positive step sizes, and the SST method with ∈ E (2 -√2, 1) is asymptotically mean square stable for some step sizes. It is also proved in this paper that the SST method possesses a bounded absorbing set which is independent of initial data, and the mean square dissipativity of this method is also proved. 展开更多
关键词 neutral stochastic delay differential equations Split-step method Stability Poisson jumps.
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CONVERGENCE RATE OF THE TRUNCATED EULER-MARUYAMA METHOD FOR NEUTRAL STOCHA STIC DIFFERENTIAL DELAY EQUATIONS WITH MARKOVIAN SWITCHING
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作者 Wei Zhang 《Journal of Computational Mathematics》 SCIE CSCD 2020年第6期903-932,共30页
The key aim of this paper is to show the strong convergence of the truncated Euler-Maruyama method for neutral stochastic differential delay equations(NSDDEs)with Markovian switching(MS)without the linear growth condi... The key aim of this paper is to show the strong convergence of the truncated Euler-Maruyama method for neutral stochastic differential delay equations(NSDDEs)with Markovian switching(MS)without the linear growth condition.We present the truncated Euler-Maruyama method of NSDDEs-MS and consider its moment boundedness under the local Lipschitz condition plus Khasminskii-type condition.We also study its strong convergence rates at time T and over a finite interval[0,T].Some numerical examples are given to illustrate the theoretical results. 展开更多
关键词 neutral stochastic differential delay equations Truncated Euler-Maruyama method Local Lipschitz condition Khasminskii-type condition Markovian switching
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ASYMPTOTIC BEHAVIOR OF SOLUTIONS OF NONLINEAR NEUTRAL DIFFERENTIAL EQUATION
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作者 Liang Ruixi Peng Jun Shen Jianhua 《Annals of Differential Equations》 2006年第4期502-510,共9页
The boundedness of the every solution and the asymptotic behavior of all solutions of the nonlinear neutral delay differential equation [x(t) - P(t)x(t - r)]' + Q1(t)f(x(t -σ1)) - Q2(t)f(x(t - σ2)... The boundedness of the every solution and the asymptotic behavior of all solutions of the nonlinear neutral delay differential equation [x(t) - P(t)x(t - r)]' + Q1(t)f(x(t -σ1)) - Q2(t)f(x(t - σ2)) = 0, t 〉 t0 are investigated, where τ,σ1, σ2 ∈ (0, ∞), P∈C([t0, ∞), R), and Q1, Q2 ∈C([t0,∞),R), f ∈ C(R, R). The sufficient conditions obtained improve the existing results in the literatures. 展开更多
关键词 NONLINEAR asymptotic behavior neutral delay differential equation
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OSCILLATION CRITERIA FOR SECOND ORDER QUASILINEAR NEUTRAL EQUATION
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作者 Siyu Zhang,Fanwei Meng(Dept. of Math.,Qufu Normal University,Qufu 273165,Shandong) 《Annals of Differential Equations》 2011年第1期104-110,共7页
We present some new oscillation criteria for second order neutral delay differential equations with distributed deviating argument using the Riccati technique and some inequalities. The results obtained improve and ex... We present some new oscillation criteria for second order neutral delay differential equations with distributed deviating argument using the Riccati technique and some inequalities. The results obtained improve and extend some known results. 展开更多
关键词 OSCILLATION second order QUASILINEAR neutral delay differential equation distributed deviating argument
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