Sharp version of the Goldberg–Sachs theorem
نویسندگان
چکیده
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ژورنال
عنوان ژورنال: Annali di Matematica Pura ed Applicata
سال: 2010
ISSN: 0373-3114,1618-1891
DOI: 10.1007/s10231-010-0151-4