Kiessling, Michael K.-H. - In: Physica A: Statistical Mechanics and its Applications 279 (2000) 1, pp. 353-368
two-dimensional so-called quantum Liouville gravity. The PDE for n=4 is Paneitz’ equation, and while it is not known in … appearance in some recent model of four-dimensional quantum gravity. In differential geometry, the Paneitz equation and its …