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Mathematics
Ziqiang Cui's user avatar
Ziqiang Cui's user avatar
Ziqiang Cui's user avatar
Ziqiang Cui
  • Member for 2 years, 3 months
  • Last seen more than a month ago
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question
7
Does forgetful functor commute with limits?
Jul 28
question
4
UFD implies GCD
Mar 9, 2023
question
4
Definition of closed immersion of locally ringed spaces
Jul 31
question
3
What is $k$-Hausdorffification?
Aug 27, 2023
question
3
Induced map on stalks is bijective for all $x\in X$ if and only if the morphism of presheaf is bijective for any open subset
Apr 21
question
3
How to verify a scheme is a fibre product
May 25
question
3
isomorphism and surjection of sheaves of rings
Aug 3
question
1
Tensor product over several modules
Mar 14, 2023
question
1
definition of chain homotopy
Aug 10, 2023
question
1
In an abelian category with enough projectives left derived functor of a right exact functor is universal delta functor
Aug 16, 2023