[K-OS] Knot Online Seminar
[K-OS] is an online research seminar which focuses on knot
theory and low-dimensional topology. Talks will be delivered
by authors of recent arXiv articles of significant interest.
It happens the 3rd Thursday of every month
from 16:15 to 17:15
(
CET/CEST Berlin,
Brussels, Madrid, Paris, Rome, Vienna, Warsaw, Zurich)
on
Zoom.
It is organized by
Alexandra
Kjuchukova,
Lukas
Lewark,
Delphine
Moussard
and
Emmanuel
Wagner.
It benefits from logistical support from
the
CNRS, the university
of
Paris and the
ETHZ.
If there is a recent arXiv preprint which you would like to see featured on the seminar, please email the organizers with your suggestion.
The K-OS talks are also listed in a
Google Calendar.
Forthcoming Talks
19 June 2025
- Speaker: Marco Radeschi (Università degli Studi di Torino)
- Title: Finiteness Theorem of isoparametric foliations with bounded geometry – a topological account (on 2502.20191).
- Abstract: Isoparametric submanifolds and foliations, in particular in round spheres, have been a historically fundamental concept in submanifold geometry that linked geometry, topology, and algebra. In this talk, I will survey these concepts underlying the rich history and applications, and will describe new results in joint work with A. Lytchak and M. Krannich. In the new work, we analyze the space of all isoparametric submanifolds on compact manifolds with uniformly bounded diameter, volume, and sectional curvature, and show that up to foliated diffeomorphism there are only finitely many such foliations. The talk will be tailored for topologically-minded people. Or at least, the tailor will do his best.
July / August 2025
18 September 2025
