HIGHLIGHTS
- who: Thomas Buchert et al. from the Centre de Recherche Astrophysique de Lyon UMR5574, Universitu00e9 Claude Bernard Lyon, Ens de Lyon, CNRS, Lyon, France have published the research work: On General-Relativistic Lagrangian Perturbation Theory and Its Non-Perturbative Generalization, in the Journal: Universe 2022, 8, 583. of /2022/
- what: Difficulties that can be at least partially circumvented in the astrophysical context by a suitable choice of boundary conditions, e_g, asymptotic flatness, but not when the authors aim at describing the Universe as a whole. Such a setup is in the spirit of the Eulerian . . .
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