Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.698265
Title: Reducts of aleph_zero-categorical structures
Author: Agarwal, Lovkush
ISNI:       0000 0004 5990 2500
Awarding Body: University of Leeds
Current Institution: University of Leeds
Date of Award: 2016
Availability of Full Text:
Access through EThOS:
Access through Institution:
Abstract:
Given two structures M and N on the same domain, we say that N is a reduct of M if all emptyset-definable relations of N are emptyset-definable in M. In this thesis, the reducts of the generic digraph, the Henson digraphs, the countable vector space over F_2 and of the linear order Q.2 are classified up to first-order interdefinability. These structures are aleph_zero-categorical, so classifying their reducts is equivalent to classifying the closed groups that lie in between the structures’ automorphism groups and the full symmetric group.
Supervisor: Truss, John Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.698265  DOI: Not available
Share: