Some remarks on the Mumford-Welters connection
Mumford introduced in the 1960ies an algebraic approach to the construction of (almost) canonical ba
Geometry and Topology
L-infinity algebras, central extentions, and M-theory
In this introduction for geometers and topologists, we explain the role that central extensions of L
Donaldson-Uhlenbeck compactification for the moduli space of framed sheaves on a Deligne-Mumford stack
Framed sheaves over surfaces first appeared as a generalisation of framed SU(r) instantons on S4. La
Topological complexity of the Klein bottle
The notion of topological complexity of a space has been introduced by M. Farber in order to give a
EPRL/FK Asymptotics and the Flatness Problem: a concrete example
Spin foam models are a "state-sum" approach to loop quantum gravity which aims to facilitate the des
Quadratic complexes, singular varieties and moduli
Let G be the Grassmannian of lines in P3 embedded in P5 as the Plücker quadric Q. The intersection
Non-existence of orthogonal complex structures on the round 6-sphere
In this talk, we will review the famous Hopf problem, which dates back to 1948, of whether there is
Geodesics on the space of Kahler metrics: construction and applications to quantization
We will describe a method for constructing geodesics on the space of Kahler metrics on a compact Kah
Mixed Hodge structures on symmetric products
In this talk, we will cover some results on the nature of mixed Hodge structures on the cohomology o