کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4659761 1344336 2012 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface-links represented by 4-charts and quandle cocycle invariants, II
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات هندسه و توپولوژی
پیش نمایش صفحه اول مقاله
Surface-links represented by 4-charts and quandle cocycle invariants, II
چکیده انگلیسی

In this paper, we give lower bounds of the braid indices of surface-links by represented 4-charts by quandle cocycle invariants. As a consequence, we show that the braid index of the connected sum of a spun trefoil and a 2-twist spun trefoil is five, which is a special case of Tanakaʼs Problem.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Topology and its Applications - Volume 159, Issue 4, 1 March 2012, Pages 1026-1040