A characterization of retracts in certain Fraïssé limits
A characterization of retracts in certain Fraïssé limits
复制标题
某些 Fraïssé 极限下的回缩特征
DOI:
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发表时间:
2012
影响因子:
0.3
通讯作者:
I. Dolinka
中科院分区:
文献类型:
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作者:
I. Dolinka
Assuming certain conditions on a class documentclass{article}usepackage{amssymb,amsmath,mathrsfs}egin{document}pagestyle{empty}$mathscr{C}$end{document} of finitely generated first‐order structures admitting the model‐theoretical construction of a Fraïssé limit, we characterize retracts of such limits as algebraically closed structures in a class naturally related to documentclass{article}usepackage{amssymb,amsmath,mathrsfs}egin{document}pagestyle{empty}$mathscr{C}$end{document}. In this way we generalize an earlier description of retracts of the countably infinite random graph.