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math.AT2004
De Rham intersection cohomology for general perversities
Martintxo E. Saralegi-Aranguren
For a stratified pseudomanifold , we have the de Rham Theorem $ \lau{\IH}{*}{\per{p}}{X} = \lau{\IH}{\per{t} - \per{p}}{*}{X}, $ for a perversity $\per{p}$ verifying $\per{0} \l…
math.AT2004
Intersection cohomology of circle actions
Gabriel Padilla, Martintxo Saralegi-Aranguren
A classical result says that a free action of the circle on a topological space is geometrically classified by the orbit space and by a cohomological class ${H}…