更深入的代数拓扑学以及范畴理论的知识将有更大的帮助。

Some more advanced algebraic topology may also be useful as might some knowledge of category theory.

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第二章借助垂直范畴得到了关于有限表示型遗传代数，任意有限维遗传代数上几乎完备例外序列补的一些结论。

In chapter 2, we get some conclusions for the completion of the almost complete exceptional sequence of representation-finite type algebra and finite dimensional algebra using perpendicular category.

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证明了广义限制李代数意义下的诱导模成为(？)-模范畴对象。

We prove that as a generalized restricted Lie algebra, the induced modules of s (m; n) are objects of the (?) -module category.

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