Dear Brian,
     Greetings.
     I think that this paper is closely related to your research. I hope
that you are willing to referee it. It has been submitted to the special
issue in Math Progr in honour of Jos Sturm.
I report by the end of May would be great.
       Thanks in advance for your help.
         best regards  Henry
P.S. Please confirm your decision - and hope to see you in Stockholm.