. A note on extremal combinatorics of cyclic split systems.
Dress, A., Klucznik, M., Koolen, J., Moulton, V. (2001)
Séminaire Lotharingien de Combinatoire [electronic only]
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Displaying similar documents to “In a shadow of the RH: Cyclic vectors of Hardy spaces on the Hilbert multidisc”
. A note on extremal combinatorics of cyclic split systems.
On strongly -cyclic acts
Akbar Golchin, Parisa Rezaei, Hossein Mohammadzadeh (2009)
Czechoslovak Mathematical Journal
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By a regular act we mean an act such that all its cyclic subacts are projective. In this paper we introduce strong -cyclic property of acts over monoids which is an extension of regularity and give a classification of monoids by this property of their right (Rees factor) acts.
Simultaneous reduction to normal forms of commuting singular vector fields with linear parts having Jordan blocks
Masafumi Yoshino, Todor Gramchev (2008)
Annales de l’institut Fourier
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We study the simultaneous linearizability of –actions (and the corresponding -dimensional Lie algebras) defined by commuting singular vector fields in fixing the origin with nontrivial Jordan blocks in the linear parts. We prove the analytic convergence of the formal linearizing transformations under a certain invariant geometric condition for the spectrum of vector fields generating a Lie algebra. If the condition fails and if we consider the situation where small denominators...
On Kelvin type transformation for Weinstein operator
Martina Šimůnková (2001)
Commentationes Mathematicae Universitatis Carolinae
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The note develops results from [5] where an invariance under the Möbius transform mapping the upper halfplane onto itself of the Weinstein operator on is proved. In this note there is shown that in the cases , no other transforms of this kind exist and for case , all such transforms are described.