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- W4304700934 abstract "We develop a new nonlinear method to model structure formation in general relativity from a generalization of the relativistic Lagrangian perturbation schemes, controlled by Szekeres (and LTB) exact solutions. The overall approach can be interpreted as the evolution of a deformation field on an inhomogeneous reference model, obeying locally Friedmann-like equations. In the special case of locally one-dimensional deformations, the new model contains the entire Szekeres family of exact solutions. As thus formulated, this approach paraphrases the Newtonian and relativistic Zel'dovich approximations, having a large potential for applications in contexts where relativistic degrees of freedom are relevant. Numerical simulations are implemented to illustrate the capabilities and accuracy of the model." @default.
- W4304700934 created "2022-10-12" @default.
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- W4304700934 date "2022-10-08" @default.
- W4304700934 modified "2023-09-27" @default.
- W4304700934 title "Beyond relativistic Lagrangian perturbation theory. I. An exact-solution controlled model for structure formation" @default.
- W4304700934 doi "https://doi.org/10.48550/arxiv.2210.04004" @default.
- W4304700934 hasPublicationYear "2022" @default.
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