iglpdc/dmrg101_tutorial — pull request #2 by gcross (2012-12-07 07:38:43+00:00)
Title: Fixed erroneous singlet subspace reference

The actual subspace is over the singlet state and
the triplet state where the two particles have
opposite spin. I have thus changed the term
"singlet subspace" to subspace where they two
particles have opposite spin.

(This may seem pedantic, but giving the current
wording it was impossible to figure out what the
reader was expected to do merely by reading the
problem statement, as interpreted literally there
is exactly one state in the subspace.)