187 research outputs found

    A Linear-Nonlinear Formulation of Einstein Equations for the Two-Body Problem in General Relativity

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    A formulation of Einstein equations is presented that could yield advantages in the study of collisions of binary compact objects during regimes between linear-nonlinear transitions. The key idea behind this formulation is a separation of the dynamical variables into i) a fixed conformal 3-geometry, ii) a conformal factor possessing nonlinear dynamics and iii) transverse-traceless perturbations of the conformal 3-geometry.Comment: 7 pages, no figure

    Compilação atualizada das espécies de morcegos (Chiroptera) para a Amazônia Brasileira

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    Mudança organizacional: uma abordagem preliminar

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