XI: 33, 490-492, LNM 581 (1977) WALSH, John B. A property of conformal martingales (Martingale theory) Almost every path of a (complex) conformal martingale on the open time interval $]0,\infty[$ has the following behaviour at time $0$: either it has a limit in the Riemann sphere, or it is everywhere dense Comment: See also 1408 Keywords: Conformal martingales Nature: Original Retrieve article from Numdam