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X-WR-CALNAME:Institute of Mathematics and Informatics
X-ORIGINAL-URL:https://math.bas.bg
X-WR-CALDESC:Събития за Institute of Mathematics and Informatics
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DTSTART:20190331T010000
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DTSTART;TZID=Europe/Sofia:20190517T130000
DTEND;TZID=Europe/Sofia:20190517T150000
DTSTAMP:20260428T195300
CREATED:20190507T112023Z
LAST-MODIFIED:20190507T112023Z
UID:6886-1558098000-1558105200@math.bas.bg
SUMMARY:Семинар "Алгебра и логика"
DESCRIPTION:Следващото заседание на семинара “Алгебра и логика” ще се проведе на 17 май 2019 г. (петък) от 13:00 часа в зала 578 на ИМИ – БАН. \nДоклад на тема \nSOME CONGRUENCES ON THE ENDOMORPHISM MONOID OF A PARTICULAR DIGRAPH\nще изнесе Laddawan LOHAPAN (Khon Kaen University\, Khon Kaen\, Thailand). \nРезюме. As normal subgroups in groups\, congruences in Semigroup Theory play an important role. We consider the endomorphism monoid of the directed graph on the set of all natural numbers together with the so-called zig-zag order. The endomorphism monoid on a zig-zag order on $\mathbb{N}$ can be regarded as the monoid $O_{\mathbb{N}}$ of transformations preserving a zig-zag order. This monoid was first studied by Currie in 1991 and Rutkowski in 1992. In this presentation\, we determine all maximal congruences on $O_{\mathbb{N}}$ containing a particular equivalence on $O_{\mathbb{N}}.$. \n  \nПоканват се всички желаещи. \nОт секция „Алгебра и логика” на ИМИ – БАН \n 
URL:https://math.bas.bg/event/%d1%81%d0%b5%d0%bc%d0%b8%d0%bd%d0%b0%d1%80-%d0%b0%d0%bb%d0%b3%d0%b5%d0%b1%d1%80%d0%b0-%d0%b8-%d0%bb%d0%be%d0%b3%d0%b8%d0%ba%d0%b0-21/
LOCATION:Институт по математика и информатика – БАН\, Block 8\, 1113 БАН IV км.\, София\, Bulgaria
CATEGORIES:Редовен семинар
ORGANIZER;CN="%D0%A1%D0%B5%D0%BA%D1%86%D0%B8%D1%8F%20%D0%90%D0%BB%D0%B3%D0%B5%D0%B1%D1%80%D0%B0%20%D0%B8%20%D0%BB%D0%BE%D0%B3%D0%B8%D0%BA%D0%B0":MAILTO:algebra_logic_seminar@math.bas.bg
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