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The Geometry of Spacetime [E-Book] : A Mathematical Introduction to Relativity Theory /
Table of Contents: ... derivation -- Integration on manifolds -- Non-rotating black holes -- Cosmology -- Rotating black holes -- An overview of string theory....

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Introduction to Gravitational Lensing [E-Book] : With Python Examples /
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Particles in the Dark Universe [E-Book] : A Student's Guide to Particle Physics and Cosmology /