C. Herdeiro delivered an invited 5 lectures mini-course for Beijing Normal University on "Asymptotically flat black holes with hair in D=4", from October 13 to 27. The host was Professor Hongbao Zhang.
A novel approach in constructing deviations of the Kerr spacetime whereas
the symmetries can be preserved is presented. The method was applied
trivially in all known classical black-hole spacetimes tested, while
provides the possibility of testing and inventing deformations of Kerr in
a quick and innovative way. The methodology is based on earlier work by
The Scientific background document on the 2020 Nobel Physics Prize mentions the paper by C. Herdeiro and José S. Lemos (from IST Lisbon) on the genesis of the name "black hole" available in the arXiv (in English) and originally pubished in "Gazeta de Física" (in Portuguese).