ترجمه مقاله نقش ضروری ارتباطات 6G با چشم انداز صنعت 4.0
- مبلغ: ۸۶,۰۰۰ تومان
ترجمه مقاله پایداری توسعه شهری، تعدیل ساختار صنعتی و کارایی کاربری زمین
- مبلغ: ۹۱,۰۰۰ تومان
We propose a new resolution method for boundary value problems (BVPs) with Robin boundary conditions, including BVPs with mixed sets of boundary conditions, for nonlinear second-order differential equations by the Adomian decomposition method (ADM) [1–14]. This new approach is based on the Duan–Rach modified recursion scheme for the ADM [15], where we transform the original nonlinear BVP into an equivalent nonlinear Fredholm–Volterra integral equation for the solution before designing the recursion scheme. Our new algorithm for the solution of Robin BVPs subsumes the set of Dirichlet boundary conditions as well as mixed sets of Robin and Dirichlet, Robin and Neumann, Dirichlet and Robin, Dirichlet and Neumann, Neumann and Dirichlet, and Neumann and Robin boundary conditions. Furthermore we develop a multistage ADM for BVPs through partitioning the domain into two, or more, subdomains, where we compute a separate series in each subdomain using our new modified recursion scheme for nonlinear BVPs. The sub-solutions are combined by applying the conditions of continuity at the interior boundary points in analogy to the multistage ADM for initial value problems (IVPs) [16–23]. We show how our multistage ADM for BVPs can easily treat nonlinear examples when the original series diverges over the specified domain. Another aim of the multistage ADM for BVPs is to solve nonlinear Neumann BVPs relying upon the key concept of converting the original BVP into two sub-BVPs, where each is subject to a mixed set of Neumann and Dirichlet boundary conditions.