Cari colleghi, Segnalo il seguente seminario di Probabilità che si terrà Martedì prossimo a Sapienza. *Data e ora:* Martedì 27 Ottobre 14:00 *Luogo: *Sala di Consiglio, Dipartimento di Matematica G. Castelnuovo (Roma Sapienza) *Speaker:* Perla Sousi (University of Cambridge) *Titolo: *Capacity for branching random walks and percolation *Abstract: *The capacity of a set is a classical notion in potential theory and it is a measure of the size of a set as seen by a random walk or Brownian motion. Recently Zhu defined the notion of branching capacity as the analogue of capacity in the context of a branching random walk. In this talk I will describe joint work with Amine Asselah and Bruno Schapira where we introduce a notion of capacity of a set for critical bond percolation and I will explain how it shares similar properties as in the case of branching random walks. ******************************** Vittoria Silvestri Associate Professor Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome ********************************