1,461 reputation
11426
bio website preschema.com
location Essen, Germany
age 23
visits member for 5 years, 1 month
seen 16 mins ago

Mar
23
comment Six operations for (quasi)-coherent sheaves
I think that you can find a clear treatment of this, and the answers to your questions, in the book of Cisinski and Deglise (arxiv.org/abs/0912.2110v3).
Mar
20
comment Is there a database somewhere for sharing translations of mathematical works? (Or, is anyone interested in a translation of a letter Weil wrote to de Rham in 1946?)
It may be sufficient to just link to the PDF from your webpage and let Google do the rest of the work.
Mar
20
comment The Work of Pierre Deligne
That seems like a strange way to come up with questions...
Feb
13
comment Recovering an abelian category out of its derived category
To be precise, the varieties should be smooth and projective (Serre duality is used); and the reference for this is Bondal-Orlov, "Reconstruction of a variety from the derived category...". By the way, this uses only the graded structure, not the triangulated structure at all (!). For reconstructing a (Noetherian) scheme from the derived category considered as a monoidal triangulated category, see Balmer, "Presheaves of triangulated categories and reconstruction of schemes".
Feb
4
awarded  Nice Answer
Jan
25
comment Discovering and selecting conferences
Not that I know of, unfortunately...
Jan
24
answered Discovering and selecting conferences
Jan
15
awarded  Enthusiast
Jan
8
awarded  Citizen Patrol
Jan
1
awarded  Good Answer
Dec
31
comment What is meant by 'classical ideal theory'
In other words it refers to what is now known as a Dedekind domain (I guess).
Dec
31
comment What is meant by 'classical ideal theory'
In "The meaning of the form calculus in classical ideal theory" by Harley Flanders, the following appears: "Let $\mathfrak o$ be an integral domain with classical (Dedekind) ideal theory. This means that each ideal $\mathfrak a$ is a unique product $\mathfrak a = \mathfrak{p}_1\mathfrak{p}_2\cdots$ of prime ideals." ams.org/journals/tran/1960-095-01/S0002-9947-1960-0113913-4/…
Dec
31
awarded  Nice Answer
Dec
31
answered New grand projects in contemporary math
Dec
30
comment Linear transformation takes a polygon to another one.
You should post this as a new question.
Dec
29
awarded  Nice Answer
Dec
28
answered Old books still used
Dec
18
comment Does Bourbaki's (and Grothendieck's) approach to mathematics survive today?
@Terry Tao, is this really true? In his paper "Résumé de la théorie métrique des produits tensoriels topologique", one finds the statement in much more generality than stated on Wikipedia (§4, N° 2, th. 1), and the proof seems pretty easy after a typical Grothendieck-style build up of about 50 pages.
Dec
16
awarded  Nice Answer
Dec
12
comment Does Bourbaki's (and Grothendieck's) approach to mathematics survive today?
quid and Charles Matthews, it seems to me that the question is actually about doing research, not about textbooks or graduate education, isn't it? Anyway, I feel that it's a valid and interesting question, especially considering that Spencer Bloch asked the same thing (see my answer).