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PRODID:-//Discrete Mathematics Group - ECPv6.15.20//NONSGML v1.0//EN
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X-WR-CALDESC:Events for Discrete Mathematics Group
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TZID:Asia/Seoul
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TZOFFSETFROM:+0900
TZOFFSETTO:+0900
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DTSTART:20200101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20210810T163000
DTEND;TZID=Asia/Seoul:20210810T173000
DTSTAMP:20260423T052612
CREATED:20210817T073000Z
LAST-MODIFIED:20240705T183002Z
UID:4408-1628613000-1628616600@dimag.ibs.re.kr
SUMMARY:Duksang Lee (이덕상)\, Intertwining connectivities for vertex-minors and pivot-minors
DESCRIPTION:We show that for pairs (Q\,R) and (S\,T) of disjoint subsets of vertices of a graph G\, if G is sufficiently large\, then there exists a vertex v in V(G)−(Q∪R∪S∪T) such that there are two ways to reduce G by a vertex-minor operation while preserving the connectivity between Q and R and the connectivity between S and T. Our theorem implies an analogous theorem of Chen and Whittle (2014) for matroids restricted to binary matroids. Joint work with Sang-il Oum.
URL:https://dimag.ibs.re.kr/event/2021-08-10/
LOCATION:Room B232\, IBS (기초과학연구원)
CATEGORIES:Discrete Math Seminar
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