--- robots: noindex, nofollow --- # Lodha Minicourses November 9-13th, 2026 All the lectures are in the Harish-Chandra seminar room. In the cafeteria breakfast usually starts at 9+, lunch after 12:30, snacks at 4+, tea coffee & spa water the whole day. Monday BREAFAST 10:00-11:00 Damien Gaboriau: Cost of groups 11:30-12:30 Vikram Giri: Spectral geometry LUNCH Tuesday 10:00-11:00 Damien Gaboriau: Cost of groups 11:30-12:30 Vikram Giri: Spectral geometry LUNCH 14:30-15:30 Penelope Azuelos: Median spaces Wednesday BREAFAST 10:00-11:00 Damien Gaboriau: Cost of groups 11:30-12:30 Rajaram Bhat: Asymptotics of quantum dynamical semigroups LUNCH Thursday BREAFAST 10:00-11:00 Vikram Giri: Spectral geometry 11:30-12:30 Rajaram Bhat: Asymptotics of quantum dynamical semigroups LUNCH 14:30-15:30 Penelope Azuelos: Median spaces TEA Friday BREAFAST 10:00-11:00 Rajaram Bhat: Asymptotics of quantum dynamical semigroups 11:30-12:30 Arindam Sutradhar: The Pure Infiniteness Transfer Problem LUNCH TEA ## Titles and abstracts Name: Penelope Azuelos Title: Median spaces Abstract: --- Name: Rajaram Bhat Title: Asymptotics of quantum dynamical semigroups Abstract: --- Name: Damien Gaboriau Title: Cost of groups Abstract: --- Name: Vikram Giri Title: Spectral geometry Abstract: --- Name: Arindam Sutradhar Title: The Pure Infiniteness Transfer Problem Abstract: The pure infiniteness transfer problem, posed by Aranda Pino, Goodearl, Perera and Siles Molina, asks whether a dense * -subalgebra $A_0$ of a C*-algebra $A$ that is purely infinite as a ring forces $A$ to be purely infinite as a C*-algebra. We show that this is true under two additional hypotheses: $A$ has real rank zero, and $A_0$ is closed under holomorphic functional calculus.