conformal isomorphism

419–451. doi:10.1007/s002220050210. MR1608595.  ^ Sela, Zlil (1995). “The isomorphism problem for hyperbolic groups. I”. Annals of Mathematics 141 (2): 217–283

Stephan Fouldes, The Lorentz group and its finite field analogues: local isomorphism and approximation, https://arxiv.org/abs/0805.1224 ^ arxiv:hep-th/0605294

structure of varieties of moduli, varieties whose points parametrize isomorphism classes of some type of geometric object. Also made several important