Peter Feller's Home Page

Peter Feller

Postdoctoral Fellow
ETH Zurich

Usually there is a picture here Office: HG G 27.1
email: peter.feller(you know the symbol)

CV: CV.pdf

List of Publications: PublicationList.pdf

Research Interests:

I am interested in low-dimensional topology—the study of geometric objects of dimension four or less. One-dimensional objects that lie (in a potentially knotted way) in three-dimensional space—known as knots—fascinate me because their study relates to many other fields of mathematics. Often knot theory provides an approach toward visualizing more complicated objects.

In my research, I am in particular concerned with positive braids, mapping classes, algebraic knots and links, and the slice genus. I think notions of sliceness for knots provide a great point of view to understand the differences between smooth and topological 4-manifolds.

I also care about complex plane curve singularities and their deformations and hope to understand them using positive braids and tools from Heegaard-Floer theory.

And I wonder in how many ways complex algebraic varieties embed in affine space. Maybe there are as many algebraic embeddings of the complex numbers in three-dimensional affine space as there are knots in the three-sphere, probably (k)not; however, we should find out!

My PhD thesis On the signature of positive braids and adjacency for torus knots was advised by Sebastian Baader at the University of Bern.

My work is openly available on the ArXiv. You can also find my research on Google Scholar and ResearchGate. You like Geometry and Topology? Check out ETHZ's Geometry Seminar. If you register for the newsletter, I will send you title and abstract of upcoming talks.