{"id":27068,"date":"2020-12-02T12:09:00","date_gmt":"2020-12-02T17:09:00","guid":{"rendered":"https:\/\/blog.carlrobitaille.org\/?p=27068"},"modified":"2020-12-02T12:09:03","modified_gmt":"2020-12-02T17:09:03","slug":"space-vectors-forming-rational-angles","status":"publish","type":"post","link":"https:\/\/blog.carlrobitaille.org\/?p=27068","title":{"rendered":"Space vectors forming rational angles"},"content":{"rendered":"\n<p><a href=\"https:\/\/arxiv.org\/pdf\/2011.14232.pdf\">Space vectors forming rational angles<\/a><\/p>\n\n\n\n<figure class=\"wp-block-embed-twitter wp-block-embed is-type-rich is-provider-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">A remarkable result on the ArXiv tonight, due to Kedlaya, Kolpakov, Poonen, and Rubinstein, at <a href=\"https:\/\/t.co\/YNcWqgZj3M\">https:\/\/t.co\/YNcWqgZj3M<\/a>.  One of the highlights is that they fully classify tetrahedra (= triangular pyramids) with rational dihedral angles.  Here&#39;s what they prove&#8230; (1\/n)<\/p>&mdash; Marty Weissman (@marty__weissman) <a href=\"https:\/\/twitter.com\/marty__weissman\/status\/1333670741590503425?ref_src=twsrc%5Etfw\">December 1, 2020<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Space vectors forming rational angles<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-27068","post","type-post","status-publish","format-standard","hentry","category-mathematiques"],"_links":{"self":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/27068","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27068"}],"version-history":[{"count":1,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/27068\/revisions"}],"predecessor-version":[{"id":27069,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/27068\/revisions\/27069"}],"wp:attachment":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27068"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27068"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}