Citation

BibTex format

@article{Evans:1996:jlms/54.2.210,
author = {Evans, DM},
doi = {jlms/54.2.210},
journal = {Journal of the London Mathematical Society},
pages = {210--226},
title = {Splitting of finite covers of <inf>0</inf>-categorical structures},
url = {http://dx.doi.org/10.1112/jlms/54.2.210},
volume = {54},
year = {1996}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Suppose that W is a countable 0-categorical structure. We investigate the question as to whether every finite cover of W splits, that is, has an expansion which is a trivial finite cover of W. We show that for most primitive structures W which are homogeneous for a single binary relation (homogeneous graphs, partial orderings, the Henson digraphs, ...) any finite cover splits. However, in contrast to this, we show that there are non-split covers (with finite kernels) of the countable, universal, homogeneous local order.
AU - Evans,DM
DO - jlms/54.2.210
EP - 226
PY - 1996///
SN - 0024-6107
SP - 210
TI - Splitting of finite covers of <inf>0</inf>-categorical structures
T2 - Journal of the London Mathematical Society
UR - http://dx.doi.org/10.1112/jlms/54.2.210
VL - 54
ER -