A NUMERICAL INVARIANT FOR TWO COMPONENT SPATIAL GRAPHS

作者：Horiuchi Sumiko^*; Ohyama Yoshiyuki

来源：Journal of Knot Theory and Its Ramifications, 2010, 19(9): 1125-1134.

DOI：10.1142/S0218216510008364

• Spatial graph
• linking number
• Vassiliev type invariant

We define an invariant for two component spatial graphs. Although the definition of the invariant is alike a linking number, it is different from the absolute value of a linking number. We show that the invariant is not a finite type invariant.

• 出版日期2010-9