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机构地区:[1]东南大学数学系,南京211189 [2]广西大学数学与信息科学学院,南宁530004
出 处:《Journal of Southeast University(English Edition)》2011年第3期347-350,共4页东南大学学报(英文版)
基 金:The National Natural Science Foundation of China (No.10971024);the Specialized Research Fund for the Doctoral Program of Higher Education ( No. 200802860024);the Natural Science Foundation of Jiangsu Province ( No. BK2010393 );Scientific Research Foundation of Guangxi University ( No. XJZ100246)
摘 要:A module pair (C, T) over an Artin algebra A is called a tilting pair if both C and T are selforthogonal modules and the conditions T e ada C and C ∈ add T hold. The duality on a tilting pair is investigated to discuss the condition under which the dual of a tilting pair is also a tilting pair. A necessary and sufficient condition of (D(7), D(C) ) being an n-tilting pair over an Artin algebra for an n-tilting pair ( C, 7) is given. And, a necessary and sufficient condition of ( T^*, C^* ) being an ntilting pair over a selfinjective Artin algebra for an n-tilting pair (C, 7) is also given.在一个Artin代数Λ上,如果模C和T都是自正交模且满足条件T∈add C和C∈add T,则模对(C,T)称为倾斜对.讨论了倾斜对的对偶性,探讨在何种条件下一个倾斜对的对偶仍然是一个倾斜对.给出了一个Artin代数上的模对(D(T),D(C))成为一个n-倾斜对的充分必要条件.同时也给出了一个自内射Artin代数上的模对(T*,C*)成为一个n-倾斜对的充分必要条件.
关 键 词:selforthogonal module selfinjective dual module tilting pair
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