Triple linking numbers, ambiguous Hopf invariants and - MAT-UnB
... Given any ordered oriented link L in S 3 with three parametrized components X = {x(s) | s ∈ S 1 } , Y = {y(t) | t ∈ S 1 } and Z = {z(u) | u ∈ S 1 }, where S 1 is the unit circle in R2 , we define the characteristic map of L gL : T 3 = S 1 × S 1 × S 1 −→ S 2 by gL (s, t, u) = π(G(x(s), y(t), z(u))). ...
... Given any ordered oriented link L in S 3 with three parametrized components X = {x(s) | s ∈ S 1 } , Y = {y(t) | t ∈ S 1 } and Z = {z(u) | u ∈ S 1 }, where S 1 is the unit circle in R2 , we define the characteristic map of L gL : T 3 = S 1 × S 1 × S 1 −→ S 2 by gL (s, t, u) = π(G(x(s), y(t), z(u))). ...