In this talk, we will survey recent works done in collaboration with Xianghong Gong, Takayuki Koike, Xiaojun Wu. We consider an embedded n-dimensional compact complex manifold C in n+d- dimensional complex …

We consider the multicomponent Smoluchowski coagulation equation under non-equilibrium conditions induced either by a source term or via a constant flux constraint. We prove that the corresponding stationary …

In distributed and federated learning, a server minimizes an average of losses by aggregating gradients sent by $n$ participants, $f$ of which may be adversarial ("Byzantine"): they can send arbitrary vectors, …