Remarks on the Combinatorial Intersection Cohomology of Fans
Remarks on the Combinatorial Intersection Cohomology of Fans
We review the theory of combinatorial intersection cohomology of fans developed by Barthel-Brasselet-Fieseler-Kaup, Bressler-Lunts, and Karu.This theory gives a substitute for the intersection cohomology of toric varieties which has all the expected formal properties but makes sense even for non-rational fans, which do not define a toric variety.As a result, …