Emmanuel Wagner

collaborators

3 papers

math.GT2019

A Fox-Milnor theorem for the Alexander polynomial of knotted $2$ -spheres in $S^{4}$

Delphine Moussard, Emmanuel Wagner

For knots in $S^{3}$ , it is well-known that the Alexander polynomial of a ribbon knot factorizes as $f (t) f (t^{- 1})$ for some polynomial $f (t)$ . By contrast, the Alexander polynomial…

math.GT2012

HOMFLY-PT skein module of singular links in the three-sphere

Luis Paris, Emmanuel Wagner

For a ring $R$ , we denote by $R [L]$ the free $R$ -module spanned by the isotopy classes of singular links in $S^{3}$ . Given two invertible elements $x, t \in R$ , the H…

math.GT2012

A cubic defining algebra for the Links-Gould polynomial

Ivan Marin, Emmanuel Wagner

We define a finite-dimensional cubic quotient of the group algebra of the braid group, endowed with a (essentially unique) Markov trace which affords the Links-Grould invariant of…

A Fox-Milnor theorem for the Alexander polynomial of knotted 2-spheres in S4

HOMFLY-PT skein module of singular links in the three-sphere

A cubic defining algebra for the Links-Gould polynomial

A Fox-Milnor theorem for the Alexander polynomial of knotted $2$ -spheres in $S^{4}$