Abstract:
The influence of the parameter in the continuous
analog of Newton's method (CANM) on the convergence and on the convergence rate is studied. A $\tau$-region of convergence of CANM for both scalar equations and equations in a Banach space is obtained. Some almost optimal choices of the parameter are proposed. It is also shown that the well-known higher order convergent iterative methods lead to the CANM with an almost optimal parameter. Several sufficient convergence conditions for these methods are obtained.
Keywords:iterative methods; rate of convergence; Newton-type methods; nonlinear equations.