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divisbyzero.com
| | scottaaronson.blog
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| | The news these days feels apocalyptic to me---as if we're living through, if not the last days of humanity, then surely the last days of liberal democracy on earth. All the more reason to ignore all of that, then, and blog instead about the notorious Busy Beaver function! Because holy moly, what news have I...
| | computersciencewiki.org
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| | gilkalai.wordpress.com
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| | Topology Quasi-polynomial algorithms for telling if a knot is trivial Marc Lackenby announced a quasi-polynomial time algorithm to decide whether a given knot is the unknot! This is a big breakthrough. This question is known to be both in NP and in coNP. See this post, and updates there in the comment section. Topology seminar,...
| | aas.aanda.org
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| Astronomy and Astrophysics, Supplement Series (A&AS) published data papers, either observational or theoretical, as well as extensive data material forming the basis of papers with astrophysical results