{"id":863,"date":"2013-05-08T09:59:03","date_gmt":"2013-05-08T08:59:03","guid":{"rendered":"http:\/\/users.unimi.it\/mazza\/?p=863"},"modified":"2013-05-13T08:28:17","modified_gmt":"2013-05-13T07:28:17","slug":"esercizi-per-algebra-4","status":"publish","type":"post","link":"https:\/\/sites.unimi.it\/mazza\/2013\/05\/08\/esercizi-per-algebra-4\/","title":{"rendered":"Esercizi per Algebra 4"},"content":{"rendered":"<p>I seguenti esercizi sono da consegnare alla lezione di venerd\u00ec 17 maggio.<\/p>\n<ol>\n<li>Sia k campo e consideriamo il modulo libero <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-6c2c8d2603d39b6708663a4fdf5d138f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#77;&#61;&#32;&#107;&#92;&#111;&#112;&#108;&#117;&#115;&#32;&#107;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"83\" style=\"vertical-align: -2px;\"\/> con base <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-82be581450faf1e959925e19917f273c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#101;&#95;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"14\" style=\"vertical-align: -4px;\"\/> e <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-3dd2a182d89b7a0c7d990e40fe0a0e76_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#101;&#95;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"15\" style=\"vertical-align: -3px;\"\/>. Dimostrare che nel modulo <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-5a9c9f5f4708c65836839d897235e910_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#78;&#61;&#77;&#92;&#111;&#116;&#105;&#109;&#101;&#115;&#32;&#77;\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"100\" style=\"vertical-align: -2px;\"\/> l&#8217;elemento <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-b424fc7ca6e842126df6fefbf0169af3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#101;&#95;&#49;&#92;&#111;&#116;&#105;&#109;&#101;&#115;&#32;&#101;&#95;&#49;&#43;&#101;&#95;&#50;&#92;&#111;&#116;&#105;&#109;&#101;&#115;&#32;&#101;&#95;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"128\" style=\"vertical-align: -4px;\"\/> non \u00e8 un tensore elementare, cio\u00e8 non si scrive come <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-2d358a0ff070c477251567588327c3b3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#109;&#92;&#111;&#116;&#105;&#109;&#101;&#115;&#32;&#110;\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"48\" style=\"vertical-align: -2px;\"\/>.<\/li>\n<li>Sia M modulo (EDIT: su un dominio) e S sistema moltiplicativamente chiuso, e <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-6ce16743b7fd593afa68b49202895310_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#84;&#40;&#77;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"45\" style=\"vertical-align: -4px;\"\/> il sottomoulo di torsione. Dimostrare che <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-2ff201ab223af32e0ff52d809accfb93_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#84;&#40;&#83;&#94;&#123;&#45;&#49;&#125;&#32;&#77;&#41;&#92;&#99;&#111;&#110;&#103;&#32;&#83;&#94;&#123;&#45;&#49;&#125;&#32;&#40;&#84;&#40;&#77;&#41;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"189\" style=\"vertical-align: -4px;\"\/> e concludere che M \u00e8 senza torsione se e solo se le localizzazioni su primi (o massimali) lo sono.<\/li>\n<li>Dimostrare che <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-9b4e38cfb4327e8950024e4de29e16ba_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#109;&#97;&#116;&#104;&#98;&#98;&#123;&#90;&#125;&#95;&#51;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"19\" style=\"vertical-align: -3px;\"\/> \u00e8 la localizzazione di <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-8d90772dcf33c44fa8fb9257515e094b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#109;&#97;&#116;&#104;&#98;&#98;&#123;&#90;&#125;&#95;&#54;\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"19\" style=\"vertical-align: -3px;\"\/> in <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-301221b78905fef2541b134906ff7596_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#83;&#61;&#92;&#123;&#49;&#44;&#50;&#44;&#52;&#92;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"95\" style=\"vertical-align: -5px;\"\/> che \u00e8 anche isomorfo all&#8217;anello che si ottiene invertendo formalmente 2, cio\u00e8 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sites.unimi.it\/mazza\/wp-content\/ql-cache\/quicklatex.com-93b3bcf00126e3057f0dd3a2bd802031_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#109;&#97;&#116;&#104;&#98;&#98;&#123;&#90;&#125;&#95;&#54;&#91;&#120;&#93;&#47;&#40;&#49;&#45;&#50;&#120;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"111\" style=\"vertical-align: -5px;\"\/>.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>I seguenti esercizi sono da consegnare alla lezione di venerd\u00ec 17 maggio. Sia k campo e consideriamo il modulo libero con base e . Dimostrare che nel modulo l&#8217;elemento non \u00e8 un tensore elementare, cio\u00e8 non si scrive come . Sia M modulo (EDIT: su un dominio) e S sistema moltiplicativamente chiuso, e il sottomoulo &hellip; <a href=\"https:\/\/sites.unimi.it\/mazza\/2013\/05\/08\/esercizi-per-algebra-4\/\" class=\"more-link\">Leggi tutto<span class=\"screen-reader-text\"> &#8220;Esercizi per Algebra 4&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-863","post","type-post","status-publish","format-standard","hentry","category-didattica-algebra-4-2012-2013"],"_links":{"self":[{"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/posts\/863","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/comments?post=863"}],"version-history":[{"count":14,"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/posts\/863\/revisions"}],"predecessor-version":[{"id":892,"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/posts\/863\/revisions\/892"}],"wp:attachment":[{"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/media?parent=863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/categories?post=863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.unimi.it\/mazza\/wp-json\/wp\/v2\/tags?post=863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}