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Einschließung inverser Elemente durch Fixpunktverfahren

Enclosing of inverse elements by fixed-points methods

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Summary

In a partially ring, linearly convergent methods are constructed in order to enclose the inverse of a given element monotonously. For this purpose by means of a first approximation the original problem is transformed into a fixed-point equation with a contractive operator. The approach is describted if the element to inverse is known exactly or approximatively, too.

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Schmidt, J.W. Einschließung inverser Elemente durch Fixpunktverfahren. Numer. Math. 31, 313–320 (1978). https://doi.org/10.1007/BF01397882

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