Hereditary and Formally Smooth Coalgebras

Hereditary and Formally Smooth Coalgebras
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DOI:
10.1007/s00000-005-8110-3
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发表时间:
2005-08
影响因子:
0.6
通讯作者:
P. Jara;Luis Merino;D. Llena;D. Ştefan
P. Jara;Luis Merino;D. Llena;D. Ştefan
中科院分区:
数学4区
文献类型:
--
作者:
P. Jara;Luis Merino;D. Llena;D. Ştefan

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给出了光滑协代数的形式化定义,并研究了它们与遗传协代数的关系。本文的主要结果证明了具有可分根的协代数是遗传的,当且仅当它是形式光滑的,当且仅当它是协张量的协代数,其中ec0是candi的某(C0,C0) -双模的根。
We define formally smooth coalgebras and we study their relation with hereditary coalgebras. The main result of the paper establishes that a coalgebra with separable coradical is hereditary if and only if it is formally smooth if and only if it is the cotensor coalgebra, whereC0is the coradical ofCandNis a certain (C0,C0)–bicomodule.