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- Herbert H. H. Homeier
- Numerical Algorithms
- 1994

Recently, the author proposed a new nonlinear sequence transformation, the iterative J transformation , which was shown to provide excellent results in several applications H. applications of nonlinear convergence accelerators, Int. the present contribution, this sequence transformation is derived by a hierarchically consistent iteration of some basic… (More)

- H. H. Homeier
- 1995

Remainder estimates for Levin-type sequence transformations are discussed. A new remainder estimate is introduced which is related to the Kummer transformation. Test cases are presented which show that the new remainder estimate can enhance the performance of Levin-type sequence transformations considerably.

Sequence transformations are important tools for the convergence acceleration of slowly convergent scalar sequences or series and for the summation of divergent series. The basic idea is to construct from a given sequence { {sn} } a new sequence { {s ′ n } } = T ({ {sn} }) where each s ′ n depends on a finite number of elements sn 1 ,. .. , sn m. Often, the… (More)

A new nonlinear sequence transformation, the iterative J transformation, was proposed recently For this transformation, a derivation based on the method of hierarchical consistency, alternative recursive representations, general properties, an explicit expression for the kernel, model sequences, and its relation to other sequence transformations have been… (More)

- Herbert H. H. Homeier
- J. Computational Applied Mathematics
- 2009

Recently, Sidi [Sidi, A. (1995): Acceleration of convergence of (generalized) Fourier series by the d-transformation. Ann. Numer. Math. 2, 381–406] proposed a method for the convergence acceleration of certain orthogonal expansions. The present contribution shows that it is possible to extend the method proposed by Sidi to a wider class of problems by… (More)

- Herbert H. H. Homeier
- Numerical Algorithms
- 1998

The stability of a large class of nonlinear sequence transformations is analyzed. of the convergence behavior of the J transformation. Similar to recent results of Sidi, it is proved that the pJ transformations , the Weniger S transformation, the Levin transformation and a special case of the Generalized Richardson Extrapolation Process of Sidi are… (More)

- Herbert H. H. Homeier
- Numerical Algorithms
- 1992

- Herbert H. H. Homeier
- Numerical Algorithms
- 1998

We derive the I transformation, an iterative sequence transformation that is useful for the convergence acceleration of certain Fourier series. The derivation is based on the concept of hierarchical consistency in the asymptotic regime. We show that this sequence transformation is a special case of the J transformation. Thus, many properties of the I… (More)

- H. H. Homeier, Hartmut Krienke
- 1995

The solution of the Ornstein-Zernike equation with various closure approximations is studied. This problem is rewritten as an integral equation that can be solved iteratively on a grid. The convergence of the xed point iterations is relatively slow. We consider transformations of the sequence of solution vectors using non-linear sequence transformations,… (More)