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Showing 2004Show all
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math.GT2004
Singular chain intersection homology for traditional and super-perversities
Greg Friedman
We introduce a singular chain intersection homology theory which generalizes that of King and which agrees with the Deligne sheaf intersection homology of Goresky and MacPherson on…
math.GT2004
Cobordism of disk knots
Greg Friedman
We study cobordisms and cobordisms rel boundary of PL locally-flat disk knots $D^{n-2}\into D^n$. Cobordisms of disk knots that do not fix the boundary sphere knots are easily clas…