Trace fields of twist knots

被引:30
作者
Hoste, J [1 ]
Shanahan, PD
机构
[1] Pitzer Coll, Dept Math, Claremont, CA 91711 USA
[2] Loyola Marymount Univ, Dept Math, Los Angeles, CA 90045 USA
关键词
twist knot; trace field; hyperbolic knot;
D O I
10.1142/S0218216501001049
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper we compute the trace held for the family of hyperbolic twist knots. We describe this field as a simple extension Q(z(0)) where to is a specified root of a particular irreducible polynomial Phi (n)(z) is an element of Z[z]. As a consequence, we find that the degree of the trace field is precisely two less than the minimal crossing number of a twist knot.
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页码:625 / 639
页数:15
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