We consider the Bartnik extension problem, which originates from Bartink's definition of quasi-local mass. In this problem, we consider Bartnik boundary data on a topological 2-sphere (induced metric...
Chuangzhong Li (Shandong University of Science and Technology, Qingdao, China) (online)
Among integrable systems, the KP hierarchy and its cousins play a rather important role. Their solution spaces are algebraic varieties and have infinite dimensional symmetries. In this lecture, we...
In this one-day workshop, we aim to bring together researchers and students based in Berlin and Brandenburg. The goal is to stimulate interactions between pure and applied mathematicians working in...
We consider the perturbation of the exterior differential by a closed one-form \(a\), \(d_a := d + a \wedge \cdot\), on a manifold with boundary. This gives rise to the perturbed (or twisted) de Rham...
