A NEWMAN–PENROSE CALCULATOR FOR INSTANTON METRICS

Tolga Birkandan ()
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Tolga Birkandan: Faculty of Science and Letters, Department of Physics, Istanbul Technical University, Maslak 34469, Istanbul, Turkey

International Journal of Modern Physics C (IJMPC), 2008, vol. 19, issue 08, 1277-1290

Abstract: We present a Maple11+GRTensorII based symbolic calculator for instanton metrics using Newman–Penrose formalism. Gravitational instantons are exact solutions of Einstein's vacuum field equations with Euclidean signature. The Newman–Penrose formalism, which supplies a toolbox for studying the exact solutions of Einstein's field equations, was adopted to the instanton case and our code translates it for the computational use.

Keywords: Gravitational instantons; Newman–Penrose formalism; symbolic computation; 04; 04.62.+v (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1142/S0129183108012807

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