Remarks on Ponomarev-systems
Remarks on Ponomarev-systems
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Ponomarev 系统备注
DOI:
--
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Ge Xun
中科院分区:
文献类型:
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作者:
Ge Xun
In this paper,it is proved that there exists a Ponomarev-system(f,M,X,P) such that P is point-finite and f is not a compact mapping,which shows that a proposition on Ponomarev-systems is not true.As further investigations of Ponomarev-system(f,M,X,P), this paper gives sufficient and necessary conditions such that f is a compact mapping and P is point-finite in Ponomarev-systems(f,M,X,P) respectively.Also,this paper establishes some relations between mappings and networks in Ponomarev-systems.
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影响因子:
0.6
作者:
Y. Ikeda;Chuan Liu;Yoshio Tanaka
通讯作者:
Y. Ikeda;Chuan Liu;Yoshio Tanaka
影响因子:
0.6
作者:
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通讯作者:
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DOI:
--
发表时间:
1999-03
期刊:
Mathematica japonicae
影响因子:
--
作者:
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通讯作者:
Qu Zhi Bin;G. Min
影响因子:
0.7
作者:
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通讯作者:
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影响因子:
0.2
作者:
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通讯作者:
燕鹏飞