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Showing 2000 · hep-thShow all
2 papers · 2 filters
hep-th2000★ 130 cited
Solutions to the cosmological constant problems
J. Garriga, A. Vilenkin
We critically review several recent approaches to solving the two cosmological constant problems. The "old" problem is the discrepancy between the observed value of and the lar…
hep-th2000★ 124 cited
Gravity of higher-dimensional global defects
Itsaso Olasagasti, Alexander Vilenkin
Solutions of Einstein's equations are found for global defects in a higher-dimensional spacetime with a nonzero cosmological constant Lambda. The defect has a (p-1)-dimensional cor…