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gr-qc2002
The harmonic oscillator, dimensional analysis and inflationary solutions
Sandro Silva e Costa
In this work, focused on the production of exact inflationary solutions using dimensional analysis, it is shown how to explain inflation from a pragmatic and basic point of view, i…
astro-ph2002
Casimir energy in finite expanding universes: a prelude
Sandro Silva e Costa, Reuven Opher
We present the Green's functions that are the solutions of the massive Klein-Gordon equation for a scalar field with non-minimal coupling to gravitation for several static and expa…