Zhen Lin

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452 Answers

newest activity votes
2
A question regarding etale morphisms of affine varieties
2
Uniformly solvable families of polynomials
2
How to directly show that Figure 8 injective immersion is not a monomorphism
2
Viewing groups as objects of the concrete category $\mathsf{Grp}$
2
Commutativity of a sheaf of groups from an epimorphism
2
Space modelled on ring
2
Two questions about monomorphisms and pullbacks in a Grothendieck topos
2
Theory of promonads
2
Are homotopy equivalent path-connected spaces homotopy equivalent as pointed spaces?
2
Two different answers when computing dimension of Zariski cotangent space?
2
When two morphisms are dual to each other in a 2 category?
2
An existence of a right Kan extension
2
adjunction relation
2
Terminology: Sheaves with surjective structure maps?
2
Images of simple modules under exact endofunctors
2
Sums of topological spaces
2
Universal property of functor category
2
Motivation for the relations defining $H^1(G,A)$ for non-commutative cohomology
2
Geometric interpretation of the fundamental theorem for coalgebras?
2
Silly question about functors
2
A property of a sheaf in an arbitrary category
2
Characterizations of faithfully exact functors of abelian categories
2
Mnemonic for the fact that a right(left) adjoint functor preserves limits(colimits)
2
Finite generation of ideal in function ring
2
Do pushouts preserve regular monomorphisms?
2
categorical interpretation of the group generated by two subgoups
2
definition of a free object in a category
2
Is $(gf)(X) = g ( f(X))$ in a category?
2
On colim $Hom_{A-alg}(B, C_i)$
2
How to characterize categories which their only isomorphisms are identities?
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