Cargando…
Classes of Polish spaces under effective Borel isomorphism /
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 ant...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Providence, Rhode Island :
American Mathematical Society,
2016.
|
| Colección: | Memoirs of the American Mathematical Society ;
no. 1135. |
| Temas: | |
| Acceso en línea: | Texto completo |
| Sumario: | 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. |
|---|---|
| Notas: | "Volume 240, number 1135 (first of 5 numbers), March 2016." |
| Descripción Física: | 1 online resource (vii, 87 pages) : illustrations |
| Bibliografía: | Includes bibliographical references (pages 81-83) and index. |
| ISBN: | 9781470428228 1470428229 |
| ISSN: | 0065-9266 ; |