The theories of Baldwin–Shi hypergraphs and their atomic models
The theories of Baldwin–Shi hypergraphs and their atomic models
复制标题
鲍德温施超图理论及其原子模型
DOI:
10.1007/s00153-021-00765-8
复制
发表时间:
2021
影响因子:
0.3
通讯作者:
Gunatilleka, Danul K.
中科院分区:
文献类型:
--
作者:
Gunatilleka, Danul K.
We show that the quantifier elimination result for the Shelah-Spencer almost sure theories of sparse random graphsgiven by Laskowski (Isr J Math 161:157–186, 2007) extends to their various analogues. The analogues will be obtained as theories of generic structures of certain classes of finite structures with a notion of strong substructure induced by rank functions and we will call the generics Baldwin–Shi hypergraphs. In the process we give a method of constructing extensions whose ‘relative rank’ is negative but arbitrarily small in context. We give a necessary and sufficient condition for the theory of a Baldwin–Shi hypergraph to have atomic models. We further show that for certain well behaved classes of theories of Baldwin–Shi hypergraphs, the existentially closed models and the atomic models correspond.
登录
查看更多内容
DOI:
--
发表时间:
1996
期刊:
Journal of Symbolic Logic (JSL)
影响因子:
--
作者:
J. Baldwin;S. Shelah
通讯作者:
S. Shelah
影响因子:
3.9
作者:
S. Shelah;J. Spencer
通讯作者:
S. Shelah;J. Spencer
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
M. Laskowski
通讯作者:
M. Laskowski
影响因子:
0.8
作者:
V. Verbovskiy;I. Yoneda
通讯作者:
I. Yoneda
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
家本宣幸;矢島幸信;N. Kemoto;池田宏一郎;家本宣幸;家本宣幸;N. Kemoto;N. Kemoto;池田宏一郎;池田宏一郎;池田宏一郎;池田宏一郎;池田宏一郎;池田 宏一郎;池田宏一郎;池田宏一郎;池田宏一郎;池田宏一郎
通讯作者:
池田宏一郎