2 papers
math.GT2019
Colored Unlinking
Natalie DuBois, Chris Eufemia, Jeff Johannes +1
In links with two components there are three different types of crossings: self-crossings in the first component, self crossings in the second component, and crossings between comp…
math.GT2000
The Casson-Walker-Lescop Invariant and Link Invariants
Jeff Johannes
Formulas previously presented for the Casson-Walker invariant are generalized to Lescop's extension. These formulas in terms of linking numbers and surgery coefficients compute the…