Here are some things that I’ve translated into English. Any comments or corrections are greatly appreciated. I’ve tried to refrain from “rewriting” too much: generally the sentence structure etc. is pretty close to the original.

For each paper, there is a link to the .tex source file, to a PDF (nightly builds from the latest version of the .tex files), and to the original paper (if a copy is freely available online). Each PDF has a version hash so you can check at a glance if there have been any changes between two copies. (I will eventually put build dates on the PDFs.)

The GitHub repository with all these translations can be found at [thosgood/translations].

The following should go without saying, but I’ll say it anyway:
I am making no claim to any of the mathematics contained in any of these translations; the only things that are mine are the errors introduced during the hazardous journey from one language to another.

The "Grothendieck trilogy"

Articles

  • A Borel, J-P Serre Le théorème de Riemann-Roch
    Bull. Soc. Math. Fr. 86 1958 97–136
    10.24033/bsmf.1500
    TeX | PDF | original
  • P Deligne Variétés abéliennes ordinaires sur un corps fini
    Inv. Math. 8 1969 238–243
    TeX | PDF | original
  • P Deligne Théorie de Hodge I
    Actes du Congrès intern. math. 1 1970 425–430
    TeX | PDF | original
  • P Deligne A quoi servent les motifs?
    Proc. Symp. in Pure Math. 55 1994 143–161
    TeX | PDF | original
  • A Grothendieck La théorie des classes de Chern
    Bull. Soc. Math. Fr. 86 1958 137–154
    10.24033/bsmf.1501
    TeX | PDF | original
  • G Pólya Bemerkung Über die Integraldarstellung der Riemannschen ξ-Funktion
    Acta Math. 48 1926 305–317
    10.1007/BF02565336
    TeX | PDF | original

Séminaire Bourbaki

Extracts (1957–62), "Fondements de la Géométrie Algébrique"

The Grothendieck Circle has a [PDF] copy of the original notes. The translation below has been updated with the comments and errata from the May 1962 "Commentaires" (Séminaire Bourbaki 14, 1961–62, Complément).

All of the following are by A Grothendieck.

  1. Théorème de dualité pour les faisceaux algébriques cohérents
    Séminaire Bourbaki 9 1956–57 Talk no. 149
    TeX | PDF
  2. Géométrie formelle et géométrie algébrique
    Séminaire Bourbaki 11 1958–59 Talk no. 182
    TeX | PDF
  3. Technique de descente et théorèmes d'existence en géométrie algébrique.
    1. Généralités. Descente par morphismes fidèlement plats
      Séminaire Bourbaki 12 1959–60 Talk no. 190
      TeX | PDF
Extracts (1948–49), "Les travaux de Koszul"

In the first series of the Séminaire Bourbaki, H Cartan gave three talks concerning the work of J-L Koszul on Lie algebras. (These specific talks were given in 1948–49, but the first published Séminaire Bourbaki collection was printed in 1952, containing the first 49 talks, and dating from 1948 up until 1951). I have combined all three talks into one document.

Séminaire Claude Chevalley

Volume 4 (1958–59), Variétés de Picard
  1. P Gabriel Faisceaux quasi-cohérents
    TeX | PDF | original
  2. P Gabriel Le théorème de Serre
    TeX | PDF | original
  3. C S Seshadri Diviseurs en géométrie algébrique
    TeX | PDF | original

Séminaire Henri Cartan

Volume 9 (1956–57), "Quelques questions de topologie"
  1. A Grothendieck Sur les faisceaux algébriques et les faisceaux analytiques cohérents
    TeX | PDF | original
  2. A Haefliger Les singularités des applications différentiables
    original
  3. A Haefliger, A Kosinski Un théorème de Thom sur les singularités des applications différentiables
    original

In progress

Sometimes a paper takes "a while" to translate, but I put it here so that people can nudge me if there's one on this list that they really want me to get around to finishing. (Some of these I have barely started, so don't get too excited.)

  • (43/126) P Deligne Equations Différentielles à Points Singuliers Réguliers
    Springer-Verlag Lecture Notes in Mathematics 163 1970
    TeX | PDF | original
  • (10/22) A Grothendieck Technique de descente et théorèmes d'existence en géométrie algébrique II: Le théorème d'existence et théorie formelle des modules
    Séminaire Bourbaki 12 1959–60 Talk no. 195
    TeX | PDF
  • (6/31) M Brion, C Procesi Action d'un tore dans une variété projective
    In Operator algebras, unitary representations, enveloping algebras, and invariant theory (Paris, 1989), Birkhäuser Boston, Progress in Mathematics 92 1990 509–539
    TeX | PDF
  • (5/38) H Grauert Über Modifikationen und exzeptionelle analytische Mengen
    Math. Ann. 146 1962 331–368
    TeX | PDF | original
  • (8/40) A Grothendieck Résumé des résultats essentiels dans la théorie des produits tensoriels topologiques et des espaces nucléaires
    Annales de l'Institut Fourier 4 1952 73–112
    TeX | PDF | original
  • (7/214) P Deligne Le Groupe Fondamental de la Droite Projective Moins Trois Points
    In Galois Groups over ℚ, Springer-Verlag, MSRI Publications 16 1989 79–297
    10.1007/978-1-4613-9649-9_3
    TeX | PDF | original
  • (2/9) D Hilbert Ueber die Darstellung definiter Formen als Summen von Formenquadraten
    Math. Ann. 32 1888 342–350
    TeX | PDF | original

Wish list

Translations which I have yet to start, but one day intend to, are listed here, so that I don't forget about them. Feel free to contact me with any suggestions!

  • Familles d'espaces complexes et fondements de la géométrie analytique
    Séminaire Henri Cartan 13 1960–61 all talks.
    original
  • E Brieskorn Die Auflösung der rationalen Singularitäten holomorpher Abbildungen
    Math. Ann. 178 1968 255–270
    original