Efstratia Kalfagianni

collaborators

3 papers

math.GT2003

Knot adjacency and satellites

Efstratia Kalfagianni, Xiao-Song Lin

A knot K is called n-adjacent to the unknot, if K admits a projection containing n generalized crossings such that changing any m (no larger than n) of them yields a projection of…

math.GT1998

Milnor and finite type invariants of plat-closures

Efstratia Kalfagianni, Xiao-Song Lin

We show that for an $n$ -component, $n$ -bridge link and a positive integer $m$ , the following is true: If the longitudes of $L$ lie in the $(m + 2)$ -th term of the lower central serie…

math.GT1998

Regular Seifert surfaces and Vassiliev knot invariants

Efstratia Kalfagianni, Xiao-Song Lin

We show that the Vassiliev invariants of orders $\leq n$ of a knot K, are obstructions to finding a regular Seifert surface, S, whose complement looks "simple" (e.g. like the compl…