10 citations · 15 across the 3 of their papers we have counts for
8 papers
TQFT computations and experiments
Norbert A'Campo
With the help of a new program, we do computations concerning the Witten-Reshetikhin-Turaev representations of mapping class groups. In particular we distinguish some mutant fibere…
A natural construction for the real numbers
Norbert A'Campo
A new construction of the real number system, that is built directly upon the additive group of integers and has its roots in the definition due to Henri Poincaré of the rotation n…
Monodromy of real isolated singularities
Norbert A'Campo
For isolated complex hypersurface singularities with real defining equation we show the existence of a monodromy vector field such that complex conjugation intertwines the local mo…
Quadratic vanishing cycles, reduction curves and reduction of the monodromy group of plane curve singularities
Norbert A'Campo
The geometric monodromy of a plane curve singularity is a quasi-finite diffeomorphism. In this paper we locate the reduction curves of the geometric monodromy and the quadratic van…
A combinatorial property of generic immersions of curves
Norbert A'Campo
A divide is a relative generic immersion of a finite union of copies of the unit interval in the unit disk. A divide defines a classical link in the 3- sphere, which is a fibered l…
Planar trees, slalom curves and hyperbolic knots
Norbert A'Campo
We deduce from a rooted tree in the disk a slalom divide and a slalom knot. A slalom knot is either the local link of a simple plane curve singularity of type A_2n, E_6, E_8 or a f…