{"id":7266,"date":"2022-11-22T14:09:43","date_gmt":"2022-11-22T13:09:43","guid":{"rendered":"https:\/\/www.dm.unipi.it\/eventi\/on-the-classification-problem-of-countable-abelian-groups-martino-lupini-universita-di-bologna\/"},"modified":"2022-11-23T19:46:40","modified_gmt":"2022-11-23T18:46:40","slug":"on-the-classification-problem-of-countable-abelian-groups-martino-lupini-universita-di-bologna","status":"publish","type":"unipievents","link":"https:\/\/www.dm.unipi.it\/en\/eventi\/on-the-classification-problem-of-countable-abelian-groups-martino-lupini-universita-di-bologna\/","title":{"rendered":"On the classification problem of countable abelian groups &#8211; Martino Lupini (Universit\u00e0 di Bologna)"},"content":{"rendered":"<h4>Venue<\/h4>\n<p>Dipartimento di Matematica, Aula Seminari.<\/p>\n<h4 class='mt-4'>Abstract<\/h4>\n<div>I will present the framework of Borel-definable homological algebra, where classical constructions and invariants from homological algebra are enriched with additional information of descriptive set-theoretic nature. I will then explain how this viewpoint allows us to study the complexity of the problem of classifying extensions of two given countable abelian groups, and how the techniques of Borel-definable homological algebra can be also used to obtain new purely algebraic results.<\/div>\n<p class='mt-4'>Further information is available on the <a href=\"https:\/\/events.dm.unipi.it\/event\/139\/\">event page<\/a> on the Indico platform.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I will present the framework of Borel-definable homological algebra, where classical constructions and invariants from homological algebra are enriched with additional information of descriptive set-theoretic nature. I will then explain how this&hellip;<\/p>\n<p><a class=\"btn btn-dark btn-sm unipi-read-more-link\" href=\"https:\/\/www.dm.unipi.it\/en\/eventi\/on-the-classification-problem-of-countable-abelian-groups-martino-lupini-universita-di-bologna\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"template":"","tags":[],"unipievents_taxonomy":[],"class_list":["post-7266","unipievents","type-unipievents","status-publish","hentry"],"acf":[],"unipievents_startdate":1669892400,"unipievents_enddate":1669896000,"unipievents_place":"Dipartimento di Matematica, Aula Seminari.","unipievents_externalid":139,"jetpack_sharing_enabled":true,"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents\/7266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents"}],"about":[{"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/types\/unipievents"}],"author":[{"embeddable":true,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/users\/6"}],"version-history":[{"count":1,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents\/7266\/revisions"}],"predecessor-version":[{"id":7289,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents\/7266\/revisions\/7289"}],"wp:attachment":[{"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/media?parent=7266"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/tags?post=7266"},{"taxonomy":"unipievents_taxonomy","embeddable":true,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents_taxonomy?post=7266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}