The most complete mass-dimension four topological gravity
نویسندگان
چکیده
منابع مشابه
Topological gravity in dimensions two and four
Recent work on gravity in two dimensions has a natural generalization to four dimensions. 1. Basic definitions 1.1 The (symmetric monoidal) two-category (Gravity)d+1 has objects: compact oriented d-manifolds, with • morphisms V0 → V1 : (d+ 1)-manifolds W with ∂W ∼= V op 0 t V1, and • diffeomorphisms W̃ →W as two-morphisms. The category Mor(V0, V1) with cobordisms from V0 to V1 as objects and dif...
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ژورنال
عنوان ژورنال: General Relativity and Gravitation
سال: 2020
ISSN: 0001-7701,1572-9532
DOI: 10.1007/s10714-020-02746-3