The topology of asymptotically locally flat gravitational instantons
نویسندگان
چکیده
منابع مشابه
The topology of asymptotically locally flat gravitational instantons
In this letter we demonstrate that the intersection form of the Hausel–Hunsicker–Mazzeo compactification of a four dimensional ALF gravitational instanton is definite and diagonalizable over the integers if one of the Kähler forms of the hyper-Kähler gravitational instanton metric is exact. This leads to their topological classification. The proof exploits the relationship between L2 cohomology...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2006
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2006.08.080