新着情報
新着情報
トポロジーセミナー（2018/10/30）
topology日時：2018年10月30日（火）16：00〜17：00
場所：筑波大学自然系学系D棟D814
講演者：Jung Hoon Lee 氏 （Chonbuk National University）
講演題目：A necessary condition for constituent knots of reducible genus two handlebody-knots
アブストラクト：A knot K is a constituent knot of a genus two handlebody-knot H if there is a non-separating disk D in H such that the core of cl(H-N(D)) is K.
We characterize constituent knots of a non-trivial reducible genus two handlebody-knot in terms of an incompressible torus (or two incompressible tori) in the exterior of the handlebody-knot.場所：筑波大学自然系学系D棟D814
講演者：Jung Hoon Lee 氏 （Chonbuk National University）
講演題目：A necessary condition for constituent knots of reducible genus two handlebody-knots
アブストラクト：A knot K is a constituent knot of a genus two handlebody-knot H if there is a non-separating disk D in H such that the core of cl(H-N(D)) is K.
