Chaos is closely associated with homoclinic orbits in deterministic nonlinear dynamics.In this paper,analytic expressions of homoclinic orbits for some(2+1)- di
<正>For a class of two-point boundary value problems, by virtue of one- dimensional projection interpolation, it is proved that the nodal recovery derivative ob
In this paper, the relationships between the region of the two coexisting kinds of macro-defects and the reduction in area, as well as between the region and th
<正>The method of double Fourier transform was employed in the analysis of the semi-infinite elastic foundation with vertical load.And an integral representatio
In some special cases of flight simulation (e.g. for formation flight, in-flight tanking) it is required to generate a two-dimensional field of turbulence, in w
<正>A theoretical model is suggested to mathematically describe the effect of thermal diffusion from a sand-bed on evolution of a wind-blown sand flow.An upward