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https://open.uns.ac.rs/handle/123456789/11459
Nаziv: | Point estimation and some applications to iterative methods | Аutоri: | Petković, Milica Herceg D. Ilić S. |
Dаtum izdаvаnjа: | 1-јан-1998 | Čаsоpis: | BIT Numerical Mathematics | Sažetak: | We consider one of the crucial problems in solving polynomial equations concerning the construction of such initial conditions which provide a safe convergence of simultaneous zero-finding methods. In the first part we deal with the localization of polynomial zeros using disks in the complex plane. These disks are used for the construction of initial inclusion disks which, under suitable conditions, provide the convergence of the Gargantini-Henrici interval method. They also play a key role in the convergence analysis of the fourth order Ehrlich-Aberth method with Newton's correction for the simultaneous approximation of all zeros of a polynomial. For this method we state the initial condition which enables the safe convergence. The initial condition is computationally verifiable since it depends only on initial approximations, which is of practical importance. | URI: | https://open.uns.ac.rs/handle/123456789/11459 | ISSN: | 63835 | DOI: | 10.1007/BF02510920 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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