Dear Professor Zheng,
I am a PhD student in MSIS dept of Smeal College. I am working on one
project recently which seems to be a problem of calculus of variation.
Unfortunately I had no background of this knowledge. Could you please help
me and give me some hint of how to solve this problem? Could I meet you to
discuss about it?
Thank you very much,
Answer: Sure, can you come Thursday 9--10am?
Subject: a request
I am a faculty member in statistics at PSU, and recently I have
been trying to find a good reference for the "Spectral Theorem
for compact self-adjoint operators". A book would be
nice, as it is more or less self-contained. I found you
had some lecture notes on this, and wonder if you could
thanks in advance,
Answer: Yes, of course! ``Functional Analysis'' by K. Yosida,
Springer Verlag, Sixth edition, p319, should do.
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