{"id":1002,"date":"2017-03-24T08:24:29","date_gmt":"2017-03-24T08:24:29","guid":{"rendered":"http:\/\/math.utu.fi\/cie2017\/?page_id=1002"},"modified":"2017-03-28T06:45:28","modified_gmt":"2017-03-28T06:45:28","slug":"combinatorics-and-algorithmics-on-words","status":"publish","type":"page","link":"https:\/\/math.utu.fi\/cie2017\/combinatorics-and-algorithmics-on-words\/","title":{"rendered":"Combinatorics and algorithmics on words"},"content":{"rendered":"<h5>Stepan Holub and Robert Veroff &#8211; Formalizing a Fragment of Combinatorics on Words<\/h5>\n<p><strong>Abstract<\/strong>:<br \/>\n<em>We describe an attempt to formalize some tasks in combinatorics on words using the assistance of Prover9, an automated theorem prover for first-order and equational logic.<\/em><\/p>\n<h5>Pascal Ochem &#8211; Pattern avoidance<\/h5>\n<p><strong>Abstract<\/strong>:<br \/>\n<em>We survey the constructive and non-constructive methods for the existence of infinite words avoiding a pattern. We also make several remarks about pattern avoidance in general that are more or less related to the question whether the avoidability index of a pattern is computable.<\/em><\/p>\n<h5>Svetlana Puzynina &#8211; On variations of Morse and Hedlund theorem<\/h5>\n<p><strong>Abstract<\/strong>:<br \/>\n<em>In this talk we discuss generalizations of the Morse-Hedlund theorem and present a concept of words complexity via group actions.<\/em><\/p>\n<h5>Narad Rampersad &#8211; Formulas with reversal<\/h5>\n<p><strong>Abstract<\/strong>:<br \/>\n<em>We introduce the new concept of &#8220;formula with reversal&#8221;. We show some simple formulas with reversal that have high index and we give a partial characterization of unavoidable formulas with reversal.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stepan Holub and Robert Veroff &#8211; Formalizing a Fragment of Combinatorics on Words Abstract: We describe an attempt to formalize some tasks in combinatorics on words using the assistance of Prover9, an automated theorem prover for first-order and equational logic. Pascal Ochem &#8211; Pattern avoidance Abstract: We survey the constructive and non-constructive methods for the &hellip; <a href=\"https:\/\/math.utu.fi\/cie2017\/combinatorics-and-algorithmics-on-words\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Combinatorics and algorithmics on words<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1002","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/math.utu.fi\/cie2017\/wp-json\/wp\/v2\/pages\/1002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/math.utu.fi\/cie2017\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/math.utu.fi\/cie2017\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/math.utu.fi\/cie2017\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/math.utu.fi\/cie2017\/wp-json\/wp\/v2\/comments?post=1002"}],"version-history":[{"count":4,"href":"https:\/\/math.utu.fi\/cie2017\/wp-json\/wp\/v2\/pages\/1002\/revisions"}],"predecessor-version":[{"id":1107,"href":"https:\/\/math.utu.fi\/cie2017\/wp-json\/wp\/v2\/pages\/1002\/revisions\/1107"}],"wp:attachment":[{"href":"https:\/\/math.utu.fi\/cie2017\/wp-json\/wp\/v2\/media?parent=1002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}