On boundary conditions for linearised Einstein’s equations
Year: 2024
Type: article
Abstract: We investigate the properties of a fairly large class of boundary conditions for the linearised Einstein equations in the Riemannian setting, ones which generalise the linearised counterpart of boundary conditions proposed by Anderson. Through the prism of the quest to quantise gravitational waves in curved spacetimes, we study their properties from the point of view of ellipticity, gauge invariance, and the existence of a spectral gap.
Source: Applied Mathematics Letters
Authors: Matteo Capoferri, Simone Murro, Gabriel Schmid
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,690
Funders: Istituto Nazionale di Alta Matematica "Francesco Severi", Heriot-Watt University, Ministero dell’Istruzione, dell’Università e della Ricerca, Università degli Studi di Genova, Ministero dell'Università e della Ricerca, Gruppo Nazionale per la Fisica Matematica, Engineering and Physical Sciences Research Council, Division of Mathematical Sciences
OpenAlex ID: W4400387194