Dear friends and colleagues, on Monday, 16 October 2017, Adam Sikora (Macquarie University) is giving a talk in the PDE Seminar on "Riesz transform and and harmonic functions" An abstract is available at http://www.maths.usyd.edu.au/u/PDESeminar/abstracts17/sikora.xhtml The talk is from 2 pm - 3 pm in Carslaw 829 (Access Grid Room) on the Camperdown Campus at the University of Sydney. Everybody is invited to attend the talk, take part in the discussion afterward in Carslaw Common Room 727 on level 7, and to join us for lunch at 12:30 pm. Kind regards, Daniel D and Daniel H