Матразнобой

Люк Иллюзи о Гротендике (ref)

He was improvising, in his fast and elegant handwriting. He said that he couldn’t think without writing. I, myself, would find it more convenient first to close my eyes and think, or maybe just lie down, but he could not think this way, he had to take a sheet of paper, and he started writing. He wrote X → S, passing the pen several times on it, you see, until the characters and arrow became very thick. He somehow enjoyed the sight of these objects.

<...>

The seminar, SGA 6, went well, we eventually proved a Riemann-Roch theorem in a quite general context, and Berthelot and I were quite happy. I remember that we tried to imitate Grothendieck’s style. When Grothendieck handed me his notes on the finiteness conditions in derived categories, I said This is only over a point. We should do that in a fibered category over some topos... (laughter) It was a little naive, but, anyway, it proved to be the right generalization.

<...>

Also, do you know what his favorite tree was? He liked nature, and there was one tree he liked more than
the others. It was the olive tree, a modest tree, but which lives long, is very sturdy, is full of sun and life.
He was very fond of the olive tree.

Вообще замечательный текст. О возникновении кристаллов, о том как Делинь в 18-страничный аппендикс к книге Хартсхорна умудрился вложить больше смысла, чем было в книге, о страданиях аспирантов Гротендика... Долгих лет Иллюзи!

❤7

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5.79K viewsAltan, Oct 27, 2024 at 10:41

Люк Иллюзи о Гротендике (ref)

He was improvising, in his fast and elegant handwriting. He said that he couldn’t think without writing. I, myself, would find it more convenient first to close my eyes and think, or maybe just lie down, but he could not think this way, he had to take a sheet of paper, and he started writing. He wrote X → S, passing the pen several times on it, you see, until the characters and arrow became very thick. He somehow enjoyed the sight of these objects.

The seminar, SGA 6, went well, we eventually proved a Riemann-Roch theorem in a quite general context, and Berthelot and I were quite happy. I remember that we tried to imitate Grothendieck’s style. When Grothendieck handed me his notes on the finiteness conditions in derived categories, I said This is only over a point. We should do that in a fibered category over some topos... (laughter) It was a little naive, but, anyway, it proved to be the right generalization.

Also, do you know what his favorite tree was? He liked nature, and there was one tree he liked more than
the others. It was the olive tree, a modest tree, but which lives long, is very sturdy, is full of sun and life.
He was very fond of the olive tree.

BY Матразнобой