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Showing 1993 · gr-qcShow all
3 papers · 2 filters
gr-qc1993★ 13 cited
The Construction of Sorkin Triangulations
Philip Tuckey
Some time ago, Sorkin (1975) reported investigations of the time evolution and initial value problems in Regge calculus, for one triangulation each of the manifolds and $R^…
gr-qc1993★ 69 cited
The Scalar Field Equation in the Presence of Signature Change
Tevian Dray, Corinne A. Manogue, Robin W. Tucker
We consider the (massless) scalar field on a 2-dimensional manifold with metric that changes signature from Lorentzian to Euclidean. Requiring a conserved momentum in the spatially…
gr-qc1993★ 645 cited
A more accurate analytic calculation of the spectrum of cosmological perturbations produced during inflation
E. D. Stewart, D. H. Lyth
Formulae are derived for the spectra of scalar curvature perturbations and gravitational waves produced during inflation, special cases of which include power law inflation, natura…