Po-Ning Chen, UCR
Abstract: The definition of angular momentum in general relativity has been a subtle issue since the 1960s, due to the 'supertranslation ambiguity'.
In this talk, we will discuss how the mathematical theory of quasilocal mass and angular momentum leads to a new definition of angular
momentum at null infinity…
Anton Thalmaier (University of Luxembourg)
Abstract: We explain some new formulas for the Hessian of the heat semigroup generated by the Laplace-Beltrami operator on a Riemannian manifold and describe geometric applications related to Calderón-Zygmund type inequalities. Our approach relies on probabilistic methods from Stochastic…