Product and coproduct of group category and module category

群与模范畴中的积和余积

Finally , a necessary and sufficient condition for the twisted Smash coproduct comodule categories to be braided monoidal categories is given .

最后，我们给出了扭曲Smash余积余模范畴成为辫monoidal范畴的一个充要条件。

Precipitation of metals under hydrothermal conditions has the advantage of a compact plant but the disadvantage of producing ammonium sulfate as a coproduct .

金属在湿法加热条件下沉淀有利的是设备密实，不利的是产出了副产品硫酸铵；

We define a coproduct on the vector space which has as basis all finite binary trees by using their spine sequences , and construct a cocommutative graded connected Hopf algebra .

在有限二元树的同构类集合生成的向量空间上，利用二元树的节序列定义一个余乘法，得到了一个分次、余交换Hopf代数.

In this paper , we discuss the specific structure of product and coproduct of molecular lattices inform Lx ( called power molecular lattices ) in category CD and get formulas :

本文讨论了形如Lx的分子格（称为幂分子格）在范畴CD中的乘积与上积的具体结构，得出公式。