On an example concerning the second rigidity theorem
On an example concerning the second rigidity theorem
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DOI:
10.1090/conm/773/15528
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发表时间:
2019-08
期刊:
影响因子:
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通讯作者:
Olgur Celikbas;H. Matsui;A. Sadeghi
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文献类型:
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作者:
Olgur Celikbas;H. Matsui;A. Sadeghi
In this paper we revisit an example of Celikbas and Takahashi concerning the reflexivity of tensor products of modules. We study Tor-rigidity and the Hochster–Huneke graph with vertices consisting of minimal prime ideals, and determine a condition with which the aforementioned example cannot occur. Our result, in particular, corroborates the Second Rigidity Theorem of Huneke and Wiegand.