changed the proof
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2011-06-15 |
78133d1 |
Fixed references to short titles
using the script we will add in the next commit
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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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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 statement and the proof
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2010-10-09 |
2b090dd |
End conversion of etale to \'etale.
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changed the label to lemma-characterize-very-reasonable
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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
|
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 proof
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2009-11-04 |
c62b8c3 |
Properties of spaces: Special covering for reasonable spaces
Not sure this is really all that useful...
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assigned tag 03IH
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2009-10-25 |
2ad4800
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Tags: New tags added and two fixed
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changed the proof
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2009-10-25 |
851829c |
Properties of Spaces: Cleanup of results so far
We added a remark recalling some of the pertinent facts about
etale morphisms of schemes in the section on points of
reasonable algebraic spaces. Then we use this to shorten the
proofs of the lemmas in that section. We added a lemma saying
that a reasonable algebraic space covered by the spectrum of a
field is the spectrum of a field. Finally, we changed the lemma
stating that the topological space associated to a reasonable
space is sober into stating that it is Kolmogorov. The proof was
incorrect, and it will require considerably more work to prove
this.
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created statement with label lemma-characterize-reasonable in spaces-properties.tex
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2009-10-23 |
29972f7 |
Properties of Spaces: Reorganization of material
Discuss points on reasonable spaces in its own section.
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