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Questions that are about research in mathematics, or about the job of a research mathematician, without being mathematical problems or statements in the strictest sense. Do not use this tag for easy or supposedly easy mathematical questions.

11 votes

Is a come back to mathematical research possible?

Grothendieck is indeed a very good example. After leaving the mathematical community partly because : In the month of November, 1969, I discovered that the Institut des Hautes Études Scientifiques, w …
0 votes

What are some mathematical sculptures?

Sculpture by Nina Douglas, at the Simons Center for Geometry & Physics (There is also a copy at IHES)
8 votes

Archiving mathematical correspondence

The Grothendieck-Mumford correspondence These letters have been published in Volume II of Mumford's complete works (Selected Papers II. On Algebraic Geometry, Including Correspondence with Grothendiec …
5 votes

Archiving mathematical correspondence

The Grothendieck-Brown correspondence As far as I know these letters are planned to be published alongside "Pursuing stacks" on Documents Mathématiques
3 votes

Archiving mathematical correspondence

This page https://agrothendieck.github.io/ is collecting (mainly from the https://grothendieck.umontpellier.fr/archives-grothendieck/) mathematical letters from Grothendieck (it is work in progress bu …
6 votes

Topology in non-mathematical literature

At the Bourbaki Seminar in November 1968 the participants were handed a (premature) announcement of Bourbaki’s death. At the end it says Car Dieu est le compactifié d'Alexandrov de l'univers. Groth I …
1 vote
0 answers
49 views

Defining properties of categories out of an indicial category

$\newcommand{\Hom}{\operatorname{Hom}}$Suppose we want to define the category of arrows of $S$. Below are two forms of doing it. Definition 1: If $D$ is of the following type: $\bullet \to \bullet$, …
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4 votes
1 answer
571 views

Who introduced nerves in category theory?

Who was the first to consider that categories were semi-simplicial sets (and in particular groupoids were simplicial sets)? I think there was a concept of nerve of a covering in algebraic topology bef …
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2 votes
0 answers
288 views

Cartier and the continuity of the early history of schemes

If you allow me I would divide the early history of schemes this way _ Weil, Zariski, Bourbaki, Nagata, Van der Waerden,... up to Chevalley (you can find an interesting blog here) J P Serre varieties …
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3 votes
4 answers
534 views

Phenomena of topos

These days I am wandering on a wild adventure in an incredible but intimidating land. Fortunately, I could find a guide to some animals of this land Phenomena of gerbes But someone said to me that thi …
5 votes

Has the mathematical content of Grothendieck's "Récoltes et Semailles" been used?

Yes, R&S proved to be influential in at least one sense, the mathematical work of Z. Mebkhout (part four is dedicated to him indeed: "À Zoghman Mebkhout l’ouvrier solitaire en témoignage de respect et …
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1 vote

Exposition of Grothendieck's mathematics

For 5. Topoi. There is a very readable notice of the AMS: What is... a topos?, Luc Illusie, and with M Raynaud about Schemes at Grothendieck and Algebraic Geometry. In fact, the webpage of Professor L …
3 votes
0 answers
184 views

The site and the space

There is a (seemingly simple) statement in the literature on sheaf theory, namely, If $E$ is the site of opens of a topological space $X$, the notion of sheaf over $X$ coincides with that of sheaf of …
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2 votes

Grothendieck on topological vector spaces

Maybe you will find interesting the following references Grothendieck's Theorem, past and present, Pisier or Grothendieck’s works on Banach spaces and their surprising recent repercussions A. Grothend …