Talk:H topology
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The notion of h-covering appears already in SGA 1 Exp IX Definition 2.1 under the name "universally submersive morphism." It isn't called an h-covering until later work, but Grothendieck clearly knew what it was good for (cf SGA 4 Exp VIII Section 9). This should probably be mentioned in the article. —Preceding unsigned comment added by 140.247.39.155 (talk) 17:00, 19 May 2011 (UTC)