The differential equation y' = fy in the algebras H(D).
Alain Escassut, Marie-Claude Sarmant (1988)
Collectanea Mathematica
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Displaying similar documents to “The equation in when is quasi-invertible”
The differential equation y' = fy in the algebras H(D).
Dimension of the space of solutions of the differential equation
Alain Escassut (1987-1988)
Groupe de travail d'analyse ultramétrique
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On the extensibility of closed filters in T spaces and the existence of well orderable filter bases
Kyriakos Keremedis, Eleftherios Tachtsis (1999)
Commentationes Mathematicae Universitatis Carolinae
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We show that the statement CCFC = “” is equivalent to the CMC and, the axiom of choice AC is equivalent to the statement CFE = “”. We also show that AC is equivalent to each of the assertions: “”, “” and “”.
Absolute values on algebras
Kamal Boussaf, Alain Escassut (1995)
Annales mathématiques Blaise Pascal
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On descriptive classification of functions
Katětov, M.
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The Doitchinov Completion of a Regular Paratopological Group
Künzi, Hans-Peter, Romaguera, Salvador, Sipacheva, Ol’ga (1998)
Serdica Mathematical Journal
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In memory of Professor D. Doitchinov ∗ This paper was written while the first author was supported by the Swiss National Science Foundation under grants 21–30585.91 and 2000-041745.94/1 and by the Spanish Ministry of Education and Sciences under DGES grant SAB94-0120. The second author was supported under DGES grant PB95-0737. During her stay at the University of Berne the third author was supported by the first author’s grant 2000-041745.94/1 from the Swiss National Science Foundation. ...
Seven characterizations of non-meager 𝖯-filters
Kenneth Kunen, Andrea Medini, Lyubomyr Zdomskyy (2015)
Fundamenta Mathematicae
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We give several topological/combinatorial conditions that, for a filter on ω, are equivalent to being a non-meager -filter. In particular, we show that a filter is countable dense homogeneous if and only if it is a non-meager -filter. Here, we identify a filter with a subspace of through characteristic functions. Along the way, we generalize to non-meager -filters a result of Miller (1984) about -points, and we employ and give a new proof of results of Marciszewski (1998). We also...