Liu Hong-ji
Abstract
New categories ID and IopD are constructed based on the general category D.It is proved that if D is abelian category then there is a faithful functor from D to IopD,and that ID is also abelian category.
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New categories ID and IopD are constructed based on the general category D.It is proved that if D is abelian category then there is a faithful functor from D to IopD,and that ID is also abelian category.
Key concepts: Abelian group, Functor, Abelian category, Category of groups, Mathematics, Pure mathematics