搜索结果: 46-60 共查到“常微分方程数值解”相关记录75条 . 查询时间(2.343 秒)
三阶非线性向量常微分方程边值问题的奇摄动
奇异摄动 边值问题 非线性向量微分方程 对角化方法
2014/1/10
研究非线性三阶向量常微分方程的奇摄动边值问题. 在一定的条件下, 转变所给方程为对角化系统, 然后去求解等价的积分方程, 再用逐步逼近法和不动点原理, 证得摄动问题解的存在并给出渐近估计. 最后, 给出了若干应用例子.
随机延迟微分方程平衡方法的均方收敛性与稳定性
随机延迟微分方程 平衡方法 均方收敛性 稳定性
2012/8/2
本文讨论求解刚性随机延迟微分方程的平衡方法.证明了随机延迟微分方程平衡方法的均方收敛阶为 1/2.给出了线性随机延迟微分方程平衡方法均方稳定的条件.
Shells of twisted flag varieties and non-decomposibility of the Rost invariant
Shells of twisted flag varieties non-decomposibility of the Rost invariant
2011/1/20
In the present article we introduce two new general methods to compute the Chow motives of homogeneous varieties.
Stretching and folding diagnostics in solutions of the three-dimensional Euler and Navier-Stokes equations
diagnostics three-dimensional Euler Navier-Stokes equations
2011/3/3
Two possible diagnostics of stretching and folding (S&F) in fluid flows are discussed, based on the dynamics of the gradient of potential vor-ticity (q = ω · ∇) associated with solutions of the...
Symmetries, weak symmetries and related solutions of the Grad-Shafranov equation
Symmetries weak symmetries related solutions Grad-Shafranov equation
2011/1/19
We discuss a new family of solutions of the Grad–Shafranov GS equation that describes D-shaped to roidal plasma equilibria with sharp gradients at the plasma edge. These solutions have been derived ...
A solution to a conjecture on the rainbow connection number
edge-colored graph (strong) rainbow coloring (strong) rainbow con-nection number
2011/1/21
For a graph G, Chartrand et al. defined the rainbow connection number rc(G)and the strong rainbow connection number src(G) in “G. Charand, G.L. John,K.A. Mckeon, P. Zhang, Rainbow connection in graphs...
A polynomial invariant and duality for triangulations
polynomial invariant duality for triangulations
2011/1/19
The Tutte polynomial G(X, Y ) of a graph G is a classical invariant,important in combinatorics and statistical mechanics. An important feature of the Tutte polynomial is the duality for planar graphs...
Relative symmetric polynomials and money change problem
Money change problem Partitions of integers
2011/1/21
This article is devoted to the number of non-negative solu-tions of the linear Diophantine equation a1t1 + a2t2 + · · · antn = d,
Explicit formula for the solution of the Szegö equation on the real line and applications
Szeg¨o equation integrable systems Lax pair Hankel operators soliton resolution
2011/1/21
We consider the cubic Szeg¨o equation i@tu = (|u|2u) in the Hardy space L2 +(R) on the upper half-plane, where is the Szeg¨o projector.
Coupled nonlinear oscillators: metamorphoses of amplitude profiles. The case of the approximate effective equation
Coupled nonlinear oscillators metamorphoses of amplitude profiles approximate effective equation
2010/12/28
We study dynamics of two coupled periodically driven oscillators. Im-portant example of such a system is a dynamic vibration absorber which consists of a small mass attached to the primary vibrating s...
Extention of Finite Solvable Torsors over a Curve
solvable torsors fibered surfaces group schemes
2011/1/19
Let R be a discrete valuation ring with fraction field K and with algebraically closed residue field of positive characteristic p. Let X be a smooth fibered surface over R with geometrically connected...
We present the solutions of equations of degrees 3 and 4 using Galois theory and some simple Fourier analysis for finite groups.
Interpolating' differential reductions of multidimensional integrable hierarchies
differential reductions multidimensional integrable hierarchies
2010/11/10
We transfer the scheme of constructing differential reductions, developed recently for the case of the Manakov-Santini hierarchy, to the general multidimensional case. We consider in more detail the ...
We consider the Yamabe invariant of a compact orbifold with finitely many singular points. We prove a fundamental inequality for the estimate of the invariant from above, which also includes a criteri...
Let X V be a closed embedding, with V r X nonsingular. We de ne a constructible function X;V on X, agreeing with Verdier's specialization of the constant function 11V when X is the zero-locus of a ...