Stacks project -- Comments https://stacks.math.columbia.edu/recent-comments.xml Stacks project, see https://stacks.math.columbia.edu en stacks.project@gmail.com (The Stacks project) pieterbelmans@gmail.com (Pieter Belmans) https://stacks.math.columbia.edu/static/stacks.png Stacks project -- Comments https://stacks.math.columbia.edu/recent-comments.rss #5545 on tag 0AQ9 by PLACEMENT TRAINING https://stacks.math.columbia.edu/tag/0AQ9#comment-5545 A new comment by PLACEMENT TRAINING on tag 0AQ9. Can’t tell a good article, because it is more than that, thanks keep going... PLACEMENT TRAINING https://www.gobrainwiz.in/pages/crt

]]>
PLACEMENT TRAINING Tue, 20 Oct 2020 02:42:39 GMT
#5544 on tag 05PT by Ingo Blechschmidt https://stacks.math.columbia.edu/tag/05PT#comment-5544 A new comment by Ingo Blechschmidt on tag 05PT. But it is enough to suppose that is a (co-)cone of the diagram, and this observation is actually important in Lemma 05SH, as this lemma is (rightly) formulated without any exactness conditions on . Such conditions are not needed because any functor preserves (co-)cones even if it does not preserve (co-)limits.

]]>
Ingo Blechschmidt Mon, 19 Oct 2020 08:55:23 GMT
#5543 on tag 09Z6 by Harry Gindi https://stacks.math.columbia.edu/tag/09Z6#comment-5543 A new comment by Harry Gindi on tag 09Z6. The corresponding lemma in SGA4 (IX.2.14) asserts (1) for a map F into the product rather than the coproduct. Is this a typo?

]]>
Harry Gindi Mon, 19 Oct 2020 04:45:22 GMT
#5540 on tag 03GN by Zhenhua Wu https://stacks.math.columbia.edu/tag/03GN#comment-5540 A new comment by Zhenhua Wu on tag 03GN. Locally of finite type will suffice as universally closed morphism is quasi-compact, it's best to change this description in order to be consistent with tag 0AH6.

]]>
Zhenhua Wu Sat, 17 Oct 2020 02:47:46 GMT
#5539 on tag 01BU by minsom https://stacks.math.columbia.edu/tag/01BU#comment-5539 A new comment by minsom on tag 01BU. May I ask you something? In the proof of lemma 01BY (3) , how can we show that "There exists an open covering of such that on each open all the sections lift to sections of ." ? For sheaf axiom , we need the fact ' for open cover , , each element is same in '

]]>
minsom Fri, 16 Oct 2020 11:05:04 GMT
#5538 on tag 03J6 by Michael https://stacks.math.columbia.edu/tag/03J6#comment-5538 A new comment by Michael on tag 03J6. It looks like there is a typo here. should be and similiarly for . There is a total of three occurrences.

]]>
Michael Fri, 16 Oct 2020 04:34:14 GMT
#5537 on tag 01YC by David Liu https://stacks.math.columbia.edu/tag/01YC#comment-5537 A new comment by David Liu on tag 01YC. In the proof of lemma 01YH, why does and have supports that are strictly contained in ?

]]>
David Liu Thu, 15 Oct 2020 11:31:14 GMT
#5536 on tag 01IW by Zeyn Sahilliogullari https://stacks.math.columbia.edu/tag/01IW#comment-5536 A new comment by Zeyn Sahilliogullari on tag 01IW. g∈A in the second to last sentence should be g∈B

]]>
Zeyn Sahilliogullari Thu, 15 Oct 2020 09:07:50 GMT
#5535 on tag 0B10 by Chunhui Liu https://stacks.math.columbia.edu/tag/0B10#comment-5535 A new comment by Chunhui Liu on tag 0B10. The reference is not precise. I think it is better to write [Chapter V, C), Section 7, formula (10), Serre_algebre_locale]

]]>
Chunhui Liu Thu, 15 Oct 2020 03:54:21 GMT
#5534 on tag 02ST by Chunhui Liu https://stacks.math.columbia.edu/tag/02ST#comment-5534 A new comment by Chunhui Liu on tag 02ST. In the statement of the Lemma 02ST, I believe the last line should be .

]]>
Chunhui Liu Thu, 15 Oct 2020 03:02:56 GMT