There was a *Special Session on Coarse Geometry, Index Theory, and Operator Algebras: Around the Mathematics of John Roe* at the *Spring Central and Western Joint Sectional Meeting of the AMS* last weekend to which Christopher and I were invited to give talks.

John Roe passed away last year. His personal webpage is still online for those who want to get a glimpse at all he was interested in.

Here are a few pictures from the meeting. In the first one you see Christopher Wulff giving his talk on solving some of John’s conjectures, the second one is Rufus Willett’s talk about *Being a student of John Roe*, and on the third one you see Qin Wang projecting a quote of John (you have to zoom in a bit to read it). (Unfortunately, I forgot to take a picture of Nigel Higson giving an overview of John’s mathematical work.)

But the most interesting talk for me was by Sara Zelenberg about *Mathematics for sustainability* – the book with which John was occupied at the end (Sara is one his co-authors of this book).

Let me finish this post by showing two pictures. The first one is the group picture of this special session, which was taken in front of a projection of an old conference picture (Paul Baum’s 60th). The second one is another picture from that conference (with naming provided by Nigel Higson).