Ricci Flat 4-Metrics with Bidimensional Null Orbits
نویسندگان
چکیده
منابع مشابه
Ricci Flat Metrics with bidimensional null Orbits and non-integrable orthogonal Distribution by
We study Ricci flat 4-metrics of any signature under the assumption that they allow a Lie algebra of Killing fields with 2-dimensional orbits along which the metric degenerates and whose orthogonal distribution is not integrable. It turns out that locally there is a unique (up to a sign) metric which satisfies the conditions. This metric is of signature (++−−) and, moreover, homogeneous possess...
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ژورنال
عنوان ژورنال: Acta Applicandae Mathematicae
سال: 2006
ISSN: 0167-8019,1572-9036
DOI: 10.1007/s10440-006-9075-9