2 papers
math.GT2022
On finite type invariants of welded string links and ribbon tubes
Adrien Casejuane, Jean-Baptiste Meilhan
Welded knotted objects are a combinatorial extension of knot theory, which can be used as a tool for studying ribbon surfaces in -space. A finite type invariant theory for ribbo…
math.GT2020
Universal invariants, the Conway polynomial and the Casson-Walker-Lescop invariant
Adrien Casejuane, Jean-Baptiste Meilhan
We give a general surgery formula for the Casson-Walker-Lescop invariant of closed 3-manifolds, seen as the leading term of the LMO invariant, in a purely diagrammatic and combinat…