Wed, 30 Mar 2011 07:16:14 -0700 Kevin Walker fix definition of refinement of ball decomp (intermediate manifolds are disj unions of balls)
Thu, 24 Mar 2011 10:06:09 -0700 Kevin Walker added 2nd parameter to the two bordism examples
(0) -300 -100 -30 -10 -2 +2 +10 +30 +100 tip