A rudimentary theory of topological 4D gravity
نویسندگان
چکیده
منابع مشابه
A rudimentary theory of topological 4D gravity
A theory of topological gravity is a homotopy-theoretic representation of the Segal-Tillmann topologification of a two-category with cobordisms as morphisms. This note describes some relatively accessible examples of such a thing, suggested by the wall-crossing formulas of Donaldson theory. 1 Gravity categories A cobordism category has manifolds as objects, and cobordisms as morphisms. Such cat...
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ژورنال
عنوان ژورنال: Advances in Theoretical and Mathematical Physics
سال: 2001
ISSN: 1095-0761,1095-0753
DOI: 10.4310/atmp.2001.v5.n1.a2