On autogenerating systems
P. Ferst, P. Slačálek (1977)
Acta Universitatis Carolinae. Mathematica et Physica
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P. Ferst, P. Slačálek (1977)
Acta Universitatis Carolinae. Mathematica et Physica
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A. Gasull, R. Prohens (1997)
Applicationes Mathematicae
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We take advantage of the complex structure to compute in a short way and without using any computer algebra system the Lyapunov quantities and for a general smooth planar system.
Conlon, Joseph G., Naddaf, Ali (2000)
The New York Journal of Mathematics [electronic only]
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Krapez, A. (1981)
Publications de l'Institut Mathématique. Nouvelle Série
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Radnaev, V. A. (2002)
Vladikavkazskiĭ Matematicheskiĭ Zhurnal
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Claudio Baiocchi, Fabio Gastaldi, Franco Tomarelli (1986)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Camillo Costantini (1999)
Commentationes Mathematicae Universitatis Carolinae
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Assuming Martin’s Axiom, we provide an example of two Fréchet-Urysohn -spaces, whose product is a non-Fréchet-Urysohn -space. This gives a consistent negative answer to a question raised by T. Nogura.
Václav Koubek, Jiří Sichler (1998)
Czechoslovak Mathematical Journal
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Any finitely generated regular variety of distributive double -algebras is finitely determined, meaning that for some finite cardinal , any subclass of algebras with isomorphic endomorphism monoids has fewer than pairwise non-isomorphic members. This result follows from our structural characterization of those finitely generated almost regular varieties which are finitely determined. We conjecture that any finitely generated, finitely determined variety of distributive double...