87 reputation
7
bio website
location
age
visits member for 2 years, 7 months
seen 2 hours ago

Aug
27
awarded  Curious
Aug
26
accepted Derived pullback of the coarse moduli morphism
Aug
26
comment Derived pullback of the coarse moduli morphism
Thanks for the answer, Jason, but could you explain, please, why $f$ is flat and $\theta: Id\to Rf_{*}f^*$ is isomorphism in the tame case?
Aug
26
asked Derived pullback of the coarse moduli morphism
Sep
8
awarded  Commentator
Sep
8
comment On the local structure of Deligne-Mumford stacks
Of course I know about it, thanks.
Sep
8
revised On the local structure of Deligne-Mumford stacks
added 172 characters in body
Sep
7
asked On the local structure of Deligne-Mumford stacks
Feb
6
awarded  Critic
Feb
4
comment On the local structure of stacks
@pranavk: I deliberately did not specify, because I am interested in any kind of results.
Feb
3
asked On the local structure of stacks
Feb
3
awarded  Supporter
Feb
3
comment On the coarse moduli space of a stack
And is it right that the sheafification of $\mathcal{X}^s$ is a scheme in the case of the quotient stack $[\mathbb{A}^1/\mathbb{Z}_n]$?
Feb
3
accepted On the coarse moduli space of a stack
Feb
3
comment On the coarse moduli space of a stack
Thanks for the detailed answer, Dan. So, do I understand correctly that, if the sheafification of $\mathcal{X}^s$ is represented by a scheme, then it is a coarse moduli for $\mathcal{X}$?
Feb
2
comment On the coarse moduli space of a stack
And what if $\mathcal{X}$ is the classifying stack BG or, for example, the quotient stack $[\mathbb{A}/\mathbb{Z}_n]$? Isn't $\mathcal{X}^s$ the coarse moduli for $\mathcal{X}$ in these cases?
Feb
2
revised On the coarse moduli space of a stack
deleted 2 characters in body
Feb
2
revised On the coarse moduli space of a stack
deleted 17 characters in body
Feb
2
revised On the coarse moduli space of a stack
added 180 characters in body; added 1 characters in body
Feb
2
revised On the coarse moduli space of a stack
deleted 212 characters in body