M. Rachidi
3 Papers
21 Citations
M. Rachidi is an academic researcher. The author has contributed to research in topics: Orthogonal polynomials & Matrix splitting. The author has an hindex of 3, co-authored 3 publications.
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Papers
A note on representations for the inverses of tridiagonal matrices
J. Abderramán Marrero,M. Rachidi +1 more
TL;DR: In this paper, an explicit representation with nested sums for the entries of the inverses of general tridiagonal nonsingular matrices is proposed, and its equivalence with other particular representations, based on the combinatorial expressions or the continued fractions is considered.
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On the nested sums and orthogonal polynomials
TL;DR: In this paper, the nested sums applied to a general three-term recurrence relation are used to give compact representations of orthogonal polynomial sequences, which satisfy such kind of linear recurrence.
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Application of the companion factorization to linear non-autonomous area-preserving maps
J. Abderramán Marrero,M. Rachidi +1 more
TL;DR: In this article, the companion matrix factorization is applied to the shift matrices associated to linear non-autonomous area-preserving maps, which provides a faster computation of the transition matrices with respect to numerical algorithms based on the standard product of matrices.
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