{"id":29048,"date":"2022-01-12T02:08:04","date_gmt":"2022-01-12T07:08:04","guid":{"rendered":"https:\/\/blog.carlrobitaille.org\/?p=29048"},"modified":"2022-01-12T02:08:06","modified_gmt":"2022-01-12T07:08:06","slug":"companion-matrices","status":"publish","type":"post","link":"https:\/\/blog.carlrobitaille.org\/?p=29048","title":{"rendered":"Companion matrices"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">Ok, <a href=\"https:\/\/twitter.com\/sandwichmaker?ref_src=twsrc%5Etfw\">@sandwichmaker<\/a> , here goes! &lt;cracks knuckles&gt;. I&#39;ll begin with the *multivariate* case, which is where I actually got interested, in the mid-nineties: <a href=\"https:\/\/t.co\/AP1PyDbP6P\">https:\/\/t.co\/AP1PyDbP6P<\/a> (use <a href=\"https:\/\/t.co\/tfxiQBUsUD\">https:\/\/t.co\/tfxiQBUsUD<\/a> if that link doesn&#39;t work, and your library will open the ACM DL) 1\/17<\/p>&mdash; Rob Corless (@corless_rob) <a href=\"https:\/\/twitter.com\/corless_rob\/status\/1479313363914182662?ref_src=twsrc%5Etfw\">January 7, 2022<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"","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-29048","post","type-post","status-publish","format-standard","hentry","category-mathematiques"],"_links":{"self":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/29048","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=29048"}],"version-history":[{"count":1,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/29048\/revisions"}],"predecessor-version":[{"id":29049,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=\/wp\/v2\/posts\/29048\/revisions\/29049"}],"wp:attachment":[{"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.carlrobitaille.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}