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HOMOLOGY GROUPS OF SYMMETRIC QUANDLES AND COCYCLE INVARIANTS OF LINKS AND SURFACE-LINKS
被引:22
|作者:
Kamada, Seiichi
[1
]
Oshiro, Kanako
[1
]
机构:
[1] Hiroshima Univ, Dept Math, Hiroshima 7398526, Japan
关键词:
Knot;
link;
surface-link;
knotted surface;
quandle;
rack;
quandle homology;
symmetric quandle;
good involution;
BETTI NUMBERS;
KNOTS;
POINT;
COHOMOLOGY;
RACKS;
D O I:
10.1090/S0002-9947-2010-05131-1
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We Introduce the notion of a quandle with a good involution and its homology groups Cartel et al defined quandle cocycle invariants for oriented links and oriented surface-links By use of good involutions, quandle cocyle invariants can be defined for links and surface-links which are not necessarily oriented or mutable The invariants can be used in order to estimate the minimal triple point numbers of non-orientable surface-links
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页码:5501 / 5527
页数:27
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