Surjectively rigid chains
| Autor: | Truss, Mayra Montalvo-Ballesteros John |
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| Rok vydání: | 2018 |
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| Druh dokumentu: | Working Paper |
| Popis: | We study rigidity properties of linearly ordered sets (chains) under automorphisms, order-embeddings, epimorphisms, and endomorphisms. We focus on two main cases, dense subchains of the real numbers, and uncountable dense chains of higher (regular) cardinalities. We also give a Fraenkel-Mostowski model which illustrates the role of the axiom of choice in one of the key proofs. |
| Databáze: | arXiv |
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