On operators with a finite d-characteristic
D. Przeworska-Rolewicz, S. Rolewicz (1964)
Studia Mathematica
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D. Przeworska-Rolewicz, S. Rolewicz (1964)
Studia Mathematica
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D. Przeworska-Rolewicz, S. Rolewicz (1965)
Studia Mathematica
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M. González Ortiz (1989)
Extracta Mathematicae
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Piotr Kalemba (2015)
Open Mathematics
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The ideal (v0) is known in the literature and is naturally linked to the structure [ω]ω. We consider some natural counterpart of the ideal (v0) related in an analogous way to the structure Dense(ℚ) and investigate its combinatorial properties. By the use of the notion of ideal type we prove that under CH this ideal is isomorphic to (v0).
Kandić, Marko (2011)
Annals of Functional Analysis (AFA) [electronic only]
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Kar, S. (2005)
International Journal of Mathematics and Mathematical Sciences
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Rosłanowski, Andrzej, Shelah, Saharon (1997)
Journal of Applied Analysis
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Eugene M. Norris (1974)
Matematický časopis
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Azzouz Cherrabi, Abderrahim Miri (1999)
Extracta Mathematicae
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