The Joe Polchinski Memorial Lecture will be given by Prof. Paul Townsend from the University of Cambridge, Department of Applied Mathematics and Theoretical Physics, UK. The lecture takes place within the Spring School on Superstring Theory and Related Topics. See:  http://indico.ictp.it/event/8649/

Polchinski was a professor at the Kavli Institute for Theoretical Physics at the University of California, Santa Barbara.  His great contributions to theoretical physics, including the discovery of D-branes –– a type of membrane in string theory –– have led to advances in the understanding of string theory and quantum gravity. In 2008, he shared ICTP's Dirac Medal with Juan Maldacena and Cumrun Vafa for their fundamental contributions to superstring theory.  The three scientists’ profound achievements have helped to address outstanding questions like confinement of quarks and QCD mass spectrum from a new perspective and have found applications in practical calculations. In addition to the Dirac Medal, Polchinski was awarded the American Physical Society's 2007 Dannie Heineman Prize for Mathematical Physics, the Milner Foundation's Physics Frontiers Prize in 2013 and 2014, as well as the 2017 Breakthrough Prize in Fundamental Physics. His work touched the lives of many ICTP scientists, from the hundreds who attended his lectures to those who worked directly with him. 
The full article is available at: https://www.ictp.it/about-ictp/media-centre/news/2018/2/polchinski.aspx

Abstract of the memorial lecture "A Brief History of Branes":
Joe Polchinski made many groundbreaking  discoveries in theoretical physics. This talk
will focus on his contributions to the circle of ideas that led to M-theory in the late 1990s,
especially his work of the 1980s on supermembranes ('86) and D-branes and T-duality ('89).
This will be part of a survey  of the changing  role of branes in physics, with personal
commentary on various related topics  (such as M-branes, U-dualities, black branes) in
supergravity and string theory. 

The lecture will be livestreamed from the ICTP website.
All are welcome to participate.