
A Stirling iterative method for solving an operator equation \(P(x)=0\), or equivalently, a fixed point equation \(F(x)=x\) can be viewed as a combination of fixed point iteration and Newton iteration. The iterative scheme \(x_{n+1}=x_n-[I-F'(y_n)]^{-1}[x_n-F(x_n)]\) gives a general class of schemes. For \(y_n=x_n\), one has the standard Newton method, and for \(y_n=F(x_n)\), one has the (point) Stirling method. Analogously, ball methods generate a sequence of balls of shrinking radius, which contain a solution. A local convergence result is obtained for a ball-Stirling method. A numerical example is given in which a nonlinear Poisson problem is treated.
Finite difference methods for boundary value problems involving PDEs, numerical example, Newton's method, Stirling iterative method, fixed point iteration, convergence, Nonlinear boundary value problems for linear elliptic equations, Numerical computation of solutions to systems of equations, nonlinear operator equation, nonlinear Poisson problem, ball Stirling algorithm
Finite difference methods for boundary value problems involving PDEs, numerical example, Newton's method, Stirling iterative method, fixed point iteration, convergence, Nonlinear boundary value problems for linear elliptic equations, Numerical computation of solutions to systems of equations, nonlinear operator equation, nonlinear Poisson problem, ball Stirling algorithm
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