Conformal group

粒子物理學、N=4超对称杨-米尔斯的理论、世界面、弦理论 共形映射 共形群（英语：Conformal group）（推广） 重整化群 Di Francesco; Mathieu, Sénéchal. Conformal field theory. Graduate texts in contemporary

23(1430), 1969. (The seminal paper for the development of conformal field theory; see History of conformal field theory.) Honors by Faculty. uchicago.edu. [2018-04-18]

共形場論 (conformal field theory, CFT) ，是在共形变换下不变的量子场论。在二维情况下，有一个局部共形变换的无限维代数，共形场论有时可以精确求解或分类。 共形场论在凝聚态物理学、统计力学、量子统计力学以及弦论中有重要应用。统计系统在热力学临界点、凝聚态系统在量子临界点通常是共形不变的（临界现象）。

Math. Journal 54. 1987: 579–613.  P. Cartier. Conformal field theory and torsion elements of the Bloch group. Frontiers in Number Theory, Physics and Geometry

diffeomorphism and Weyl invariance. Weyl symmetry is broken upon quantization (Conformal anomaly) and therefore this action has to be supplemented with a counterterm