Gil Kalai

I was shocked to hear the terrible news. I remember Avner
from his days as a graduate student here in Jerusalem. Being
Nati's student he is sort of my academic nephew. Already as
a graduate student Avner had achieved important results on
metric embeddings. After Avner graduated we were not in
touch for some years but I always kept hearing great things
about him from common friends and from colleagues. Then
three weeks ago we started a correspondence on a problem
about two families of sets that Avner was thinking about
with his student Siavosh Benabbas. It looked like a very
nice problem and it was fun and interesting talking about it
with Avner. I wish we could go on.

My condolences to Ayelet, the children and to all Avner's
family.