Dynamics of Extremal Black Holes

Preface.- Acknowledgements.- Stability and instability of extremal black holes.- Introduction to general relativity and black hole dynamics.- Lorentzian geometry and causality.- The Einstein field equations.- Trapped surfaces.- The Null Infinity.- Black holes.- The black hole stability problem.- The wave equation on black hole exteriors.- Price's asymptotics for sub-extremal black holes.- Physical importance of extremal black holes.- Extremal Reissner-Nordström black holes.- The geometry of ERN.-  The horizon instability of ERN.- The precise late-time asymptotics.- Applications and additional remarks.- The Murata-Reall-Tanahashi spacetimes.- The interior of ERN and strong cosmic censorship.- Extremal Kerr black holes.- The geometry of EK.- Stability and instability of EK for scalar perturbations.- The Lucietti-Reall gravitational instability of EK.- The Casals-Gralla-Zimmerman work on EK.- Open problems.- An overview of the main proofs.- Asymptotics for ERN.- Introduction to the vector field method.- Conservation of the JT -flux.- The Morawetz estimate.- The T, P, N hierarchical vector fields.- The trapping effect on the event horizon.- Horizon localized and infinity localized hierarchies.- Energy and pointwise decay.- Late-time asymptotics.- Decay estimates for EK.- Axisymmetry vs Superradiance.- The Carter separation and frequency localization.- Physical space{Fourier space correspondence.- Frequency localized Morawetz estimates.- Energy and pointwise decay in time.- A theory of conservation laws on null hypersurfaces.- The geometry of null foliations.- Conservation laws for the wave equation.- The characteristic gluing problem.- Necessary and sufficient conditions.- Conservation laws on extremal black holes.- Bibliography.

"Very attractive feature of the book are the copious figures which greatly aid understanding. ... This book will be very useful for beginning graduate students who need to then study the proofs in the primary literature, as well as for researchers who wish to learn about the subject and understand the gist of the proofs without working through all the details." (Elizabeth Winstanley, zbMath 1419.83002, 2019)