We obtain an equation among invariants obtained from the Alexander module of an amphicheiral link. For special cases,it deduces necessary conditions on the Alexander polynomial. By using the present results and some k...We obtain an equation among invariants obtained from the Alexander module of an amphicheiral link. For special cases,it deduces necessary conditions on the Alexander polynomial. By using the present results and some known results,we show that the Alexander polynomial of an algebraically split componentpreservingly(±)-amphicheiral link with even components is zero,and we determine prime amphicheiral links with at least 2 components and up to 9 crossings.展开更多
基金supported by National Natural Science Foundation of China (Grant No. 10801021/a010402)
文摘We obtain an equation among invariants obtained from the Alexander module of an amphicheiral link. For special cases,it deduces necessary conditions on the Alexander polynomial. By using the present results and some known results,we show that the Alexander polynomial of an algebraically split componentpreservingly(±)-amphicheiral link with even components is zero,and we determine prime amphicheiral links with at least 2 components and up to 9 crossings.
