Displaying similar documents to “Affine H -structures”

Canonical subgroups of H 1 S L 2 , R

Filippo De Mari, Krzysztof Nowak (2002)

Bollettino dell'Unione Matematica Italiana

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We classify, up to conjugation, all subgroups of the semidirect products H 1 S L 2 , R and R 2 S L 2 , R . Our methods can also be applied to all Lie groups that are locally isomorphic to them.

Fractal negations.

Gaspar Mayor Forteza, Tomasa Calvo Sánchez (1994)

Mathware and Soft Computing

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From the concept of attractor of a family of contractive affine transformations in the Euclidean plane R, we study the fractality property of the De Rham function and other singular functions wich derive from it. In particular, we show as fractals the strong negations called k-negations.