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» A survey of homogeneous structures
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DM
2011
158views Education» more  DM 2011»
12 years 7 months ago
A survey of homogeneous structures
A relational first order structure is homogeneous if it is countable (possibly finite) and every isomorphism between finite substructures extends to an automorphism. This artic...
Dugald Macpherson
RML
2006
123views Business» more  RML 2006»
13 years 3 months ago
Some Results on Ordered Structures in Toposes
Abstract. A topos version of Cantor's back and forth theorem is established and used to prove that the ordered structure of the rational numbers Q, < is homogeneous in any ...
Luís A. Sbardellini, Marcelo E. Coniglio
CPC
2006
97views more  CPC 2006»
13 years 3 months ago
Homomorphism-Homogeneous Relational Structures
We study relational structures (especially graphs and posets) which satisfy the analogue of homogeneity but for homomorphisms rather than isomorphisms. The picture is rather diffe...
Peter J. Cameron, Jaroslav Nesetril
VISAPP
2008
13 years 5 months ago
Depth Prediction at Homogeneous Image Structures
Sinan Kalkan, Florentin Wörgötter, Norbe...