這兩天循丘成桐先生[廣義相對輪中的數學] 開始讀廣義相對論

(1)General Relativity : An Introduction for Physicists

Michael P. Hobson      George Efstathiou 1955~       Anthony Lasenby

[(2)Spacetime and Geometry Seen M. Carroll]  [ (3)物理學家用微分幾何 侯伯元]  [TED by Carroll]

等效原理--->Curvature (1)Ch 7 (2)Ch 3 Curvature (3) Ch 4