History of tag 045H
Go back to the tag's page.
type |
time |
link |
changed the statement and the proof
|
2011-08-11 |
f496b59 |
LaTeX: \Sch
Introduced a new macro
\def\Sch{\textit{Sch}}
and replaced all the occurences of \textit{Sch} with \Sch.
|
changed the proof
|
2010-10-09 |
97a5c76 |
Begin translating etale to \'etale or \acute{e}tale (in Math mode).
|
changed the proof
|
2010-07-16 |
d5b7bec |
Relative inertia fibred category
We pay for not introducing relative inertia fibred categories by
having to do it all over again.
|
changed the proof
|
2010-06-18 |
a283271 |
Definition of a presentation of an algebraic stack
Plus some small local improvements.
|
changed the statement
|
2010-06-10 |
59cd3cb |
An algebraic stack with trivial inertia is an algebraic space
As advertised on the blog.
|
changed the proof
|
2010-01-25 |
79c5606 |
Bootstrap: Added new chapter
It seems better to discuss the bootstrap theorems in a separate
chapter following the discussion of the basic material on
algebraic spaces. This can then be used in the chapter on
algebraic stacks when discussing presentations and what not.
The goal is to prove the theorem that an fppf sheaf F for which
there exists a scheme X and a morphism f : X --> F such that
f is representable by algebraic spaces
f is flat, surjective and locally of finite presentation
is automatically an algebraic space. We have almost all the
ingredients ready except for a slicing lemma -- namely somehow
lemma 3.3 part (1) of Keel-Mori.
|
assigned tag 045H
|
2010-01-25 |
cccc58a
|
Tags: added new tags
|
created statement with label lemma-algebraic-stack-no-automorphisms in algebraic.tex
|
2010-01-20 |
0436365 |
Algebraic stacks: Deligne-Mumford with trivial inertia is a space
To prove this for a general algebraic stack we will first prove
a characterization of a DM stack as an algebraic stack whose
inertia is formally unramified, or equivalently diagonal is
formally unramified. Before we do this it makes sense to change
the notion of unramified as suggested by David Rydh (see
documentation/todo-list).
We also added the proof of the statement that the property of
being an algebraic stack is invariant under equivalences.
|