Two‐Bridge Knots with Property Q
Two‐Bridge Knots with Property Q
复制标题
具有 Q 属性的双桥结
DOI:
10.1093/qjmath/52.4.447
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发表时间:
2001
影响因子:
0.7
通讯作者:
Arturo Ramírez
中科院分区:
文献类型:
--
作者:
F. González;Arturo Ramírez
A knotkinS3has propertyQif there is a closed surfaceSinS3containingksuch thatkis imprimitive inH1AandH1BwhereAandBare the closures of the components ofS3–S. If, in addition,lk(k,k+) ≠ 0, wherek+is contained inSand is parallel tok, thenkhas propertyQ*. We determine the 2‐bridge knotsK(β/α) that have propertyQin terms of a continued fraction expansion of α/β. We also prove that the following conditions are equivalent: (i)K(β/α) has propertyQ; (ii)K(β/α) has propertyQ*; (iii) There is an epimorphism from the group ofK(β/α) onto a free product; (iv) There is an epimorphism from the group ofK(β/α) onto Z2* Zd.