Ebook Classes of Polish Spaces Under Effective Borel Isomorphism (Memoirs of the American Mathematical Society)
You can download in the form of an ebook: pdf, kindle ebook, ms word here and more softfile type. Ebook Classes of Polish Spaces Under Effective Borel Isomorphism (Memoirs of the American Mathematical Society), this is a great books that I think.
The author studies the equivalence classes under $\Delta^1_1$ isomorphism, otherwise effective Borel isomorphism, between complete separable metric spaces which admit a recursive presentation and he shows the existence of strictly increasing and strictly decreasing sequences as well as of infinite antichains under the natural notion of $\Delta^1_1$-reduction, as opposed to the non-effective case, where only two such classes exist, the one of the Baire space and the one of the naturals. Le Live Marseille : aller dans les plus grandes soires Retrouvez toutes les discothque Marseille et se retrouver dans les plus grandes soires en discothque Marseille
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