A truncation error bound for some branched continued fractions of the special form

Author
I. B. Bilanyk
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics of the National Academy of Sciences of Ukraine, Lviv, Ukraine
Abstract
By the analogy with continued fractions, the angular domain of convergence of branched continued fraction of the special form is established. The truncation error bound for branched continued fractions of the special form is established. For this we have used the estimates for continued fractions obtained by J. Jensen, W. Gragg, D.Warner, the multidimensional analogue of the van Vleck Theorem, the analytic theory of continued fractions and branched continued fractions and the elements of the theory of stability under perturbations. In comparison with already known results, in the paper, the conditions of isolation from zero for elements of branched continued fractions of the special form are weakened, but there are some requirements for the elements’ speed of tending to zero. The obtained result is a multidimensional analogue of estimates for van Vleck continued fractions.
Keywords
continued fraction; branched continued fraction of the special form; truncation error bound
DOI
doi:10.30970/ms.52.2.115-123
Reference
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Pages
115-123
Volume
52
Issue
2
Year
2019
Journal
Matematychni Studii
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