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Reducts of Ramsey structures
[article]

2011
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arXiv
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pre-print

One way of studying a relational structure is to investigate functions which are related to that structure and which leave certain aspects of the structure invariant. Examples are the automorphism group, the self-embedding monoid, the endomorphism monoid, or the polymorphism clone of a structure. Such functions can be particularly well understood when the relational structure is countably infinite and has a first-order definition in another relational structure which has a finite language, is

arXiv:1105.6073v1
fatcat:cxh2ajuvsfbsbp4jaakep5d6sq