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Details of Grant 

EPSRC Reference: GR/R37388/01
Title: Omega-categorical structures and their interpretation in automorphism groups and pseudofinite fields
Principal Investigator: Macpherson, Professor HD
Other Investigators:
Truss, Professor J
Researcher Co-Investigators:
Project Partners:
Department: Pure Mathematics
Organisation: University of Leeds
Scheme: Standard Research (Pre-FEC)
Starts: 01 November 2001 Ends: 30 April 2004 Value (£): 93,965
EPSRC Research Topic Classifications:
Logic & Combinatorics
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
The project consists of pure mathematical research in model theory (a branch of mathematical logic), with connections to set theory, group theory, combinatorics, and number theory. It falls into two parts. Both concern interpreting first order structures which are 'omega-categorical' inside other structures, and the two parts deal with similar examples, but otherwise they have different flavour. In the first, omega-categorical structures will be interpreted inside their automorphism groups, with a view to showing by set-theoretic arguments that the structure is reconstructible from its automorphism group. Related issues on the structure of the automorphism groups will be considered. In the second, omega-categorical structures are interpreted inside 'pseudofinite fields' (infinite models of the theory of finite fields). This should lead to greater understanding of definability in pseudofinite fields. Because of good asymptotic information of definable sets in finite fields, there should be combinatorial applications to classes of finite structures which 'mimic' random structures.
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Organisation Website: http://www.leeds.ac.uk