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Displaying similar documents to “Some notes on the separation of convex sets”

Certain lacunary cosine series are recurrent

D. Grubb, Charles Moore (1994)

Studia Mathematica

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Let the coefficients of a lacunary cosine series be bounded and not square-summable. Then the partial sums of the series are recurrent.

α-Equivalence

Kyewon Koh Park (1998)

Studia Mathematica

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We define the α - relations between discrete systems and between continuous systems. We show that it is an equivalence relation. α- Equivalence vs. even α-equivalence is analogous to Kakutani equivalence vs. even Kakutani equivalence.