Browsing Theses and Dissertations by Subject "Gravitacao"
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On the possibility of ultracompact stars in semiclassical gravity
(2022) [Thesis]In broad terms, compact stars are astrophysical objects that are stabilized by the pressure of degenerate matter. Driven by the rising gravitational-wave era in astronomy we can find a renewed interest in theoretical ... -
Propagacão de ondas gravitacionais em modelos cosmológicos dos tipos FRW singular e com ricochete
(2007) [Dissertation]Neste trabalho investigamos a propagação de ondas gravitacionais em dois modelos cosmológicos não-estacionários, ambos pertencentes `a classe de Friedmann-Robertson-Walker (FRW): o Universo de Einstein-Maxwell, cuja fonte ...