Our aim in this paper is to investigate the dynamics of a system of fourth-order rational difference equations x_(n+1)=x_(n-3)-y_(n-1)/A+x_(n-3)y_(n-1), y_(n+1)=y_(n-3)-x_(n-1)/A+y_(n-3)x_(n-1),n=0,1,···, where the parameter A is arbitrary positive...
If a system is in equilibrium, then 如果系统处于平衡,那么 and (1.1) where is the sum of the external forces acting upon the system and is the total moment of these forces about an arbitrary point, including the moment of any couples which may be acting. 这里 是作用在系统上的所有外力的...
The generalized game and the system of generalized vector quasi-equilibrium problems in locally -uniform spaces In this paper, by using a KKM type theorem in FC-space, a new Himmelberg type fixed point theorem for compact and closed set-valued mappings and an existen... PD Xie - 《Nonlinea...
We analyze the stability of a unique coexistence equilibrium point of a system of ordinary differential equations (ODE system) modelling the dynamics of a metapopulation, more specifically, a set of local populations inhabiting discrete habitat patches that are connected to one another through dispersal...
The reduction of a system of forces involves seeking a system, usually the simplest possible from the point of view of the statics. Thus, the overall effect on the equilibrium of the solid is retained in the reduction procedure. To shift from a system of forces to an equivalent system from...
Bifurcation of the Equilibrium Point in the Critical Case of Two Pairs of Zero Characteristic Roots Consider the system of four autonomous differential equations x ˙ 1 =x 2 +X 1 [n+1] (x,ε)+X 1 [n+2] (x,ε)+X 1 *[n+3] (x,ε),x ˙ 2 =-x 1 2n-1 +X 2 [2n] (x,...
By applying the non-stationary tensor virial theorem to spheroidal systems of mass points with an anisotropic velocity distribution, we have found that, when the total energy is negative, there is a unique equilibrium for a given such system. In this paper, we discuss the non-linear stability ...
美 英 un.平衡点 网络均衡点;原均衡点 英汉 网络释义 un. 1. 平衡点 释义: 全部,平衡点,均衡点,原均衡点
A geometrical theorem for the static equilibrium of acommon-point-force system has been proven by means of virtual-work principle:The equilibrium point of a common-point force system has a minimal weighteddistance summation to every fixed point arbitrarily given on each force linewith a weighing ...
R2n≤A˘2c(2sμ−3c)andR2t=−3c2sR2n−A˘23cs corresponds to an equilibrium solution as long as u1n≤ 0. The normal displacement of mass 1, u1n, is then given by: u1n=11+s2(1−c22)R2n−22+F1n+csF2t+(1+c2)F2n. At this point, it is useful to introduce two new...