> < ^ Date: Fri, 30 Apr 1999 18:50:04 -0400 (EDT)
> ^ From: Raja Sekhar Bachu <bachu@anise.ee.cornell.edu >
> < ^ Subject:

I wanted to know whether there exists a solution to this problem.
Let S be a subspace of a vector space over binary field F_2 of
dimension k. Let v be an element of s. Let w(v) = weight of v
defined as the number of ones in v. Is there a way
of finding the partition function for w ( i.e., finding
out how many vectors are there in S which have weight say j. This
turns out to be simple for the full space and happens to be
just the binomial expansion (k choose j)).
Hope someone answers fast

 		Raja Sekhar Bachu
  Dept of Electrical Engineering, Cornell University.

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