Given any smooth fibration of the unit 3-sphere by great circles, we show that the distribution of 2-planes orthogonal to the great circle fibres is a tight contact structure, a fact well known …
T Machon - Proceedings of the Royal Society A, 2020 - royalsocietypublishing.org
If the vorticity field of an ideal fluid is tangent to a foliation, additional conservation laws arise. For a class of zero-helicity vorticity fields, the Godbillon-Vey (GV) invariant of foliations …
The subject of this work is a topological field theory with a non-semisimple gauge group and local observables that are both metric independent and gauge invariant. The observables …
We provide an alternative proof that Koschorke's $\kappa $-invariant is injective on the set of link homotopy classes of $ n $-component homotopy Brunnian links $ BLM (n) $. The …
Koschorke introduced a map from the space of closed n‐component links to the space of maps from the n‐torus to the ordered configuration space of n‐tuples of points in R 3. He …
What Gauss Knew about Knots & Braids Page 1 What Gauss Knew about Knots & Braids Minh-Tâm Quang Trinh Massachusetts Institute of Technology Page 2 This talk is inspired by the …
A Boulanger - Pacific Journal of Mathematics, 2020 - msp.org
Given a closed Riemannian manifold and a pair of multicurves in it, we give a formula relating the linking number of the latter to the spectral theory of the Laplace operator acting …