Published 1977 | Version v1
Report Open

Triangulation in Friedmann's cosmological model

Creators

Description

In Friedmann's model, physical 3-space has a curvature K = constant. In the cases of greatest interest (K different from 0) triangulation for the measurement of great distances should be based on non-Euclidean geometries: Riemannian (or doubly elliptic) geometry for a closed universe and Bolyai-Lobatchevsky's (or hiperbolic) geometry for an open universe

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

No modelo de Friedmann o 3-espaco fisico tem curvatura K=constante. Nos casos de maior interesse (K diferente de 0) a triangulacao para medida de grandes distancias deve basear-se nas geometrias nao euclideanas: geometria de Riemann (ou duplamente eliptica) para o universo fechado, e geometria de Bolyai-Lobatchevsky (ou hiperbolica), para o universo aberto

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Additional details

Publishing Information

Imprint Pagination
9 p.
Report number
IFT--256/77

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
9350502
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ASTRONOMY; COSMOLOGY; DISTANCE; EUCLIDEAN SPACE; LOBACHEVSKY GEOMETRY; RIEMANN SPACE; SPACE-TIME; TRIANGULAR CONFIGURATION
Descriptors DEC
CONFIGURATION; MATHEMATICAL SPACE; SPACE