Arnold's seminar (Moscow) March 13, 2001 Oleg Karpenkov. Configurations of real and complex polynomials. (after Fabrizio Catanese and Paola Frediani). "The purpose of this article is to give a geometric explanation of the surprising equality between, on one hand, the number of configurations of (complex) lemniscate generic polynomials, and, on the other hand, the number of configurations of real monic Morse polynomials with the maximal number of (real) critical points."