搜索结果: 1-15 共查到“常微分方程 differential equations”相关记录29条 . 查询时间(0.116 秒)
Interval matrix differential equations
matrix differential equation interval matrix exponential of an interval matrix continuous time imprecise Markov chain
2012/4/2
The matrix differential equation $x'(t) = Q(t)x(t), x(0) = x_0$ is considered in the case where $Q(t)$ is an unspecified matrix function of time, with the only constraint that $Q(t)\in \mset$ for ever...
Semipositone Problems of Second Order Ordinary Differential Equations
Positive solution Semipositone boundary value problem Ordinary differential equation
2011/10/12
The paper is concerned with the semipositone boundary value problems of second-order ordinary differential equations. Applying a fixed point theorem in cones, an existence result of at least one posit...
Oscillation and non-oscillation of second-order half-linear differential equations
Half-linear differential equations oscillation non-oscillation
2011/10/12
In this paper, we consider the oscillation and non-oscillation of second order half-linear differential equation. By using some new technique, we establish new oscillation and non-oscillation criteria...
Existence of S-asymptotically ω-periodic solutions for abstract fractionalintegro-differential equations with infinite delay
S-asymptotically ω-periodic mild solutions Fractional integral-differential equation Solution operator Fixed point theorems
2011/10/11
In this paper, existence of S-asymptotically ω-periodic mild solutions for abstract integro-differential equationwith fractional order is considered. The main results are obtained bythe contraction ma...
Comparison principles for integro-differential equations with L{é}vy operators - the case of spacial depending jumps -
Integro-differential equation L´ evy-Ito Operator Compari-son principle
2010/12/31
A comparison principle for the integro-differential equation with the L´evy operator corresponding to the spacial depending jump process is presented in this paper. The jump (x, z) at a point x...
Unnecessary Exact Solutions of Nonlinear Ordinary Differential Equations
Unnecessary Exact Solutions Nonlinear Ordinary Differential Equations
2010/11/7
We analyze the paper by Wazwaz and Mehanna [Wazwaz A.M., Mehanna M.S., A variety of exact travelling wave solutions for the (2+1) -- dimensional Boiti -- Leon -- Pempinelli equation, Appl. Math. Comp....
Positive periodic solutions of singular systems of first order ordinary differential equations
Periodic solutions singular system Krasnoselskii fixed point
2010/9/1
The existence and multiplicity of positive periodic solutions for first non-autonomous singular systems are established with superlinearity or sublinearity assumptions atinfinity for an appropriately ...
Differential equations, difference equations and algebraic relations: An extension to a theorem of Compoint
Differential equations difference equations algebraic relations
2010/9/1
Let C be an algebraically closed field and X a projective curve over C. Consider an ordinary linear differential equation, or a linear differ-ence equation, with coefficients in the field of rational ...
Conservation laws for under determined systems of differential equations
Adjoint equation nonlinear differential equation variational problem Lagrangian
2010/9/1
This work extends the Ibragimov’s conservation theorem for partial differential equations
[J. Math. Anal. Appl. 333 (2007 311-328] to under determined systems of differential equations.
The concepts...
A micro/macro algorithm to accelerate Monte Carlo simulation of stochastic differential equations
accelerated Monte Carlo simulation micro/macro simulation multiscale simulation
2010/9/1
We present and analyze a micro/macro acceleration technique for the Monte Carlo simulation of stochastic differential equations (SDEs) in which there is a separation between the (fast)
time-scale on ...
Oscillation Theorems for Quasilinear Elliptic Differential Equations
oscillation quasilinear elliptic equation second order vector Riccati transformation
2007/12/13
By using vector Riccati transformation and averaging technique, some oscillation criteria for the quasilinear elliptic differential equation of second order, $$ \sum_{i, j=1}^{N}D_i[\,\Psi(y) A_{ij}(x...
Strict Stability of Impulsive Differential Equations
Impulsive differential equation Strict stability Lyapunov function
2007/12/12
In this paper, we will extend the strict stability to impulsive differential equations. By using Lyapunov functions, we will get some criteria for the strict stability of impulsive differential equati...
This paper deals with the relationship between asymptotic behavior
of the numerical solution and that of the true solution itself for
fixed step-sizes. The numerical solution is viewed as a dynamica...
In this paper, we develop a new teclinique called multiplicative extrapolation method which is used to construct higher order schemes for ordinary dtherential equations. We call it a new method becaus...
Asymptotic Behavior of Solutions to a Class of Systems of Delay Differential Equations
asymptotic behavior delay differential equation $\omega$-limit set
2007/12/10
The authors investigate the asymptotic behavior of solutions to a class of systems of delay differential equations. It is shown that every bounded solution of such a class of systems tends to a cons...