The conformal factor and a central extension of a formal loop group with values in \(\text{PSL}(2,\mathbb{R})\)

zbMath0815.22006MaRDI QIDQ1310528

Ryuichi Sawae

Publication date: 13 January 1994

Published in: Hiroshima Mathematical Journal (Search for Journal in Brave)

zbMATH Keywords

central extensionssymmetric spaceformal solutionsaxially symmetric space-timeEinstein vacuum field equationsformal loop groupHauser group

Mathematics Subject Classification ID

Loop groups and related constructions, group-theoretic treatment (22E67) Einstein's equations (general structure, canonical formalism, Cauchy problems) (83C05) Differential geometry of symmetric spaces (53C35)

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