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Article

Kautsky, Jaroslav
Factorization makes fast Walsh, PONS and other Hadamard-like transforms easy. (English). In: Brandts, J., Korotov, S., Křížek, M., Segeth, K., Šístek, J. and Vejchodský, T. (eds.): Application of Mathematics 2015, In honor of the birthday anniversaries of Ivo Babuška (90), Milan Práger (85), and Emil Vitásek (85). Proceedings. Prague, November 18-21, 2015. Institute of Mathematics CAS, Prague, 2015. pp. 100-109
MSC: 11C08, 15A23, 15B34, 65Y20 | Zbl 06669922
Keywords:
Hadamard matrices; matrix polynomials; fast implementation; in-place implementation
Summary:
A simple device, based on the factorization of invertible matrix polynomials, enabling to identify the possibility of fast implementation of linear transforms is presented. Its applicability is demonstrated in the case of Hadamard matrices and their generalization, Hadamard matrix polynomials.
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