The geodesic in differential geometry is eornmonly used in computer-aided filament winding (CAFW) to avoid slippage in manufacturing process. The uniqueness of
In this article the rooted planar near-4-regular Eulerian trails are enumerated and an explicit formula for such maps is presented. Further, the rooted near-4-r
In this paper,the existence of periodic solution for the third-order nonlinear ordinarydifferential equation of the form -^x+f(-^x)+g(-^x)+h(x)=p(t) is conslde