History of tag 03KF
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changed the proof
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2011-08-10 |
65ce54f |
LaTeX: \Spec
Introduced the macro
\def\Spec{\mathop{\rm Spec}}
and changed all the occurences of \text{Spec} into \Spec.
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changed the statement and the proof
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2011-06-11 |
5619b77 |
Cleanup in Decent Spaces
More streamlined. We also (finally) made it precise that a space
is decent if and only if every one of its points is given by a
quasi-compact monomorphism from the spectrum of a field. We can
probably use this fact to our advantage in a bunch of the proofs
of this chapter...
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moved the statement to file decent-spaces.tex
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2011-06-10 |
52c6ad3 |
Decent Algebraic Spaces
Created a new chapter "Decent Algebraic Spaces" and moved most
of the material on local conditions of algebraic spaces in
there. In the next few commits we will fix the breakage that this
causes.
The reason for the move is that this material is difficult to
understand for the beginner and that most of the other material
in Properties of Spaces and Morphisms of Spaces is easier and
more analogous to what happens for schemes.
An added advantage is that we can use results on morphisms of
algebraic spaces in the new chapter, hence it becomes easier to
develop the theory of decent spaces.
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changed the proof
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2010-10-09 |
2b090dd |
End conversion of etale to \'etale.
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changed the proof
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2010-01-31 |
1642b95 |
Terminology changes:
"reasonable" ---> "very reasonable"
"almost reasonable" ---> "reasonable"
David Rydh suggested this change since the notion of being (what
is now called) very reasonable is not a particularly good
notion. On the other hand the notion of being (what is now
called) reasonable behaves quite well in various situations, and
it seems hard to envision results that use the assumption of
being very reasonable that do not hold for reasonable spaces.
Still, currently there are still some results of this form, so
we need to keep the notion "very reasonable" around (of course
we will always keep it around for the sake of referencing, but
in the future we may delegate it to a forgotten corner).
TODO (soon): Introduce decent spaces. These will be
characterized by having property (gamma).
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changed the statement and the proof
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2010-01-08 |
66f6fc5 |
Properties of Spaces: Fix Lemma 03KF
This lemma says that if X --> Y is representable and Y has
property \beta, \gamma, \delta, \epsilon or \eta, then also X
has that property.
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assigned tag 03KF
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2009-11-11 |
22fbdba
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Morphisms of Spaces: Relative conditions
Trying to understand the relative versions of the local
conditions found in Properties of Spaces
Todo:
Fix currently unfinished discussion of the above
Add lemma about algebraic spaces etale over fields
When does an algebraic space satisfy the sheaf
condition for fpqc-coverings? This is missing in
the discussion of algebraic space in the
introductory chapter on algebraic spaces, but it
doesn't have a high priority.
Add remark discussing informally the relative conditions
and what to do with them.
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created statement with label lemma-representable-properties in spaces-properties.tex
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2009-11-09 |
15b591e |
Morphisms of Spaces: Valuative criterion universal closednedd
Finally, we have the other direction. We still have to
reformulate this later for morphisms which are, say,
quasi-separated.
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