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4 papers · 1 filter
The generalized Chern conjecture for manifolds that are locally a product of surfaces
Michelle Bucher, Tsachik Gelander
We consider closed manifolds that admit a metric locally isometric to a product of symmetric planes. For such manifolds, we prove that the Euler characteristic is an obstruction to…
A geometric construction of the Conway potential function
David Cimasoni
We give a geometric construction of the multivariable Conway potential function for colored links. In the case of a single color, it is Kauffman's definition of the Conway polynomi…
Computing the writhe of a knot
David Cimasoni
We study the variation of the Tait number of a closed space curve according to its different projections. The results are used to compute the writhe of a knot, leading to a closed…
Coordinates for the moduli space of flat PSL(2,R)-connections
R. M. Kashaev
Let M be the moduli space of irreducible flat PSL(2,R) connections on a punctured surface of finite type with parabolic holonomies around punctures. By using a notion of admissibil…