{"id":1341,"date":"2018-02-28T09:55:24","date_gmt":"2018-02-28T08:55:24","guid":{"rendered":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/"},"modified":"2018-02-28T09:55:24","modified_gmt":"2018-02-28T08:55:24","slug":"algebra-geometry-and-quantization-seminar","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/","title":{"rendered":"Algebra, Geometry and Quantization seminar"},"content":{"rendered":"<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\"><p>For a finite dimensional Lie algebra g, the Duflo\u00a0map S(g)\u00a0rightarrow U(g)\u00a0defines an isomorphism of g-modules. On g-invariant elements it gives an isomorphism of algebras. Moreover, it induces an isomorphism of algebras on the level of Lie algebra cohomology H(g,S(g))\u00a0rightarrow H(g, U(g)). However, as shown by J. Alm and S. Merkulov, it cannot be extended in a universal way to an A_infty-isomorphism between the corresponding Chevalley-Eilenberg complexes. In this talk, we will try to give an elementary and self-contained proof of this fact using a version of M. Kontsevich&rsquo;s graph complex.<\/p><\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":0,"featured_media":1342,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":[],"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"event_start_date":"2018-03-09 14:00:00","event_end_date":"2018-03-09 15:00:00","event_speaker_name":"Matteo Felder (University of Zurich)","event_speaker_link":"","event_is_online":false,"event_location":"Campus Belval\r\nMaison du Nombre\r\nE06-0615350","event_street":"6, avenue de la Fonte","event_location_link":"","event_zip_code":"4364","event_city":"Esch-sur-Alzette","event_country":"LU"},"events-topic":[309],"events-type":[],"organisation":[60],"authorship":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Algebra, Geometry and Quantization seminar - FSTM I Uni.lu<\/title>\n<meta name=\"description\" content=\"For a finite dimensional Lie algebra g, the Duflo\u00a0map S(g)\u00a0rightarrow U(g)\u00a0defines an isomorphism of g-modules. On g-invariant elements it gives an\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Algebra, Geometry and Quantization seminar\" \/>\n<meta property=\"og:description\" content=\"For a finite dimensional Lie algebra g, the Duflo\u00a0map S(g)\u00a0rightarrow U(g)\u00a0defines an isomorphism of g-modules. On g-invariant elements it gives an\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/\" \/>\n<meta property=\"og:site_name\" content=\"FSTM FR\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/fstm.uni.lu\/\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2026\/03\/03111744\/FSTM_SM-Profile_1600x1600px-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"2560\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/\",\"url\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/\",\"name\":\"Algebra, Geometry and Quantization seminar - FSTM I Uni.lu\",\"isPartOf\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2018\/02\/default-4.jpg\",\"datePublished\":\"2018-02-28T08:55:24+00:00\",\"dateModified\":\"2018-02-28T08:55:24+00:00\",\"description\":\"For a finite dimensional Lie algebra g, the Duflo\u00a0map S(g)\u00a0rightarrow U(g)\u00a0defines an isomorphism of g-modules. On g-invariant elements it gives an\",\"breadcrumb\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#primaryimage\",\"url\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2018\/02\/default-4.jpg\",\"contentUrl\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2018\/02\/default-4.jpg\",\"width\":1500,\"height\":1125},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.uni.lu\/fr\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Facult\u00e9 des Sciences, des Technologies et de M\u00e9decine\",\"item\":\"https:\/\/www.uni.lu\/fstm-fr\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Events\",\"item\":\"https:\/\/www.uni.lu\/fstm-fr\/events\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Algebra, Geometry and Quantization seminar\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/#website\",\"url\":\"https:\/\/www.uni.lu\/fstm-fr\/\",\"name\":\"FSTM\",\"description\":\"Facult\u00e9 des Sciences, des Technologies et de M\u00e9decine I Uni.lu\",\"publisher\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/#organization\"},\"alternateName\":\"Facult\u00e9 des Sciences, des Technologies et de M\u00e9decine I Universit\u00e9 du Luxembourg\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.uni.lu\/fstm-fr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/#organization\",\"name\":\"FSTM - Universit\u00e9 du Luxembourg I Uni.lu\",\"alternateName\":\"Facult\u00e9 des Sciences, des Technologies et de M\u00e9decine\",\"url\":\"https:\/\/www.uni.lu\/fstm-fr\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2026\/03\/03111744\/FSTM_SM-Profile_1600x1600px-scaled.jpg\",\"contentUrl\":\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2026\/03\/03111744\/FSTM_SM-Profile_1600x1600px-scaled.jpg\",\"width\":2560,\"height\":2560,\"caption\":\"FSTM - Universit\u00e9 du Luxembourg I Uni.lu\"},\"image\":{\"@id\":\"https:\/\/www.uni.lu\/fstm-fr\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/fstm.uni.lu\/\",\"https:\/\/www.linkedin.com\/showcase\/fstm-uni-lu\"]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Algebra, Geometry and Quantization seminar - FSTM I Uni.lu","description":"For a finite dimensional Lie algebra g, the Duflo\u00a0map S(g)\u00a0rightarrow U(g)\u00a0defines an isomorphism of g-modules. On g-invariant elements it gives an","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/","og_locale":"fr_FR","og_type":"article","og_title":"Algebra, Geometry and Quantization seminar","og_description":"For a finite dimensional Lie algebra g, the Duflo\u00a0map S(g)\u00a0rightarrow U(g)\u00a0defines an isomorphism of g-modules. On g-invariant elements it gives an","og_url":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/","og_site_name":"FSTM FR","article_publisher":"https:\/\/www.facebook.com\/fstm.uni.lu\/","og_image":[{"width":2560,"height":2560,"url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2026\/03\/03111744\/FSTM_SM-Profile_1600x1600px-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/","url":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/","name":"Algebra, Geometry and Quantization seminar - FSTM I Uni.lu","isPartOf":{"@id":"https:\/\/www.uni.lu\/fstm-fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#primaryimage"},"image":{"@id":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#primaryimage"},"thumbnailUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2018\/02\/default-4.jpg","datePublished":"2018-02-28T08:55:24+00:00","dateModified":"2018-02-28T08:55:24+00:00","description":"For a finite dimensional Lie algebra g, the Duflo\u00a0map S(g)\u00a0rightarrow U(g)\u00a0defines an isomorphism of g-modules. On g-invariant elements it gives an","breadcrumb":{"@id":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#primaryimage","url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2018\/02\/default-4.jpg","contentUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2018\/02\/default-4.jpg","width":1500,"height":1125},{"@type":"BreadcrumbList","@id":"https:\/\/www.uni.lu\/fstm-fr\/events\/algebra-geometry-and-quantization-seminar\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.uni.lu\/fr"},{"@type":"ListItem","position":2,"name":"Facult\u00e9 des Sciences, des Technologies et de M\u00e9decine","item":"https:\/\/www.uni.lu\/fstm-fr\/"},{"@type":"ListItem","position":3,"name":"Events","item":"https:\/\/www.uni.lu\/fstm-fr\/events\/"},{"@type":"ListItem","position":4,"name":"Algebra, Geometry and Quantization seminar"}]},{"@type":"WebSite","@id":"https:\/\/www.uni.lu\/fstm-fr\/#website","url":"https:\/\/www.uni.lu\/fstm-fr\/","name":"FSTM","description":"Facult\u00e9 des Sciences, des Technologies et de M\u00e9decine I Uni.lu","publisher":{"@id":"https:\/\/www.uni.lu\/fstm-fr\/#organization"},"alternateName":"Facult\u00e9 des Sciences, des Technologies et de M\u00e9decine I Universit\u00e9 du Luxembourg","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.uni.lu\/fstm-fr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/www.uni.lu\/fstm-fr\/#organization","name":"FSTM - Universit\u00e9 du Luxembourg I Uni.lu","alternateName":"Facult\u00e9 des Sciences, des Technologies et de M\u00e9decine","url":"https:\/\/www.uni.lu\/fstm-fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.uni.lu\/fstm-fr\/#\/schema\/logo\/image\/","url":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2026\/03\/03111744\/FSTM_SM-Profile_1600x1600px-scaled.jpg","contentUrl":"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/20\/2026\/03\/03111744\/FSTM_SM-Profile_1600x1600px-scaled.jpg","width":2560,"height":2560,"caption":"FSTM - Universit\u00e9 du Luxembourg I Uni.lu"},"image":{"@id":"https:\/\/www.uni.lu\/fstm-fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/fstm.uni.lu\/","https:\/\/www.linkedin.com\/showcase\/fstm-uni-lu"]}]}},"_links":{"self":[{"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/events\/1341"}],"collection":[{"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/events"}],"about":[{"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/types\/events"}],"replies":[{"embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/comments?post=1341"}],"version-history":[{"count":0,"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/events\/1341\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/media\/1342"}],"wp:attachment":[{"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/media?parent=1341"}],"wp:term":[{"taxonomy":"events-topic","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/events-topic?post=1341"},{"taxonomy":"events-type","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/events-type?post=1341"},{"taxonomy":"organisation","embeddable":true,"href":"https:\/\/www.uni.lu\/fstm-fr\/wp-json\/wp\/v2\/organisation?post=1341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}