2 problems

Let $\xi$ be an oriented contact structure on a closed manifold $M$, let $v$ be a field positively transversal to $\xi$, and let $A$ be an Abelian group. Consider the spaces of $A$…

Let ${\rm PLeg}$ be the category of pseudo-Legendrian links and let $finite-order invariant$ denote finite-order invariants. Finite-order invariant conjecture. The right environmen…