scholarly journals Real intersection homology II: A local duality obstruction

2020 ◽  
Vol 271 ◽  
pp. 107050
Author(s):  
Clint McCrory ◽  
Adam Parusiński
2013 ◽  
Vol 05 (02) ◽  
pp. 121-159 ◽  
Author(s):  
GREG FRIEDMAN ◽  
JAMES McCLURE

Witt spaces are pseudomanifolds for which the middle-perversity intersection homology with rational coefficients is self-dual. We give a new construction of the symmetric signature for Witt spaces which is similar in spirit to the construction given by Miščenko for manifolds. Our construction has all of the expected properties, including invariance under stratified homotopy equivalence.


1979 ◽  
Vol 85 (3) ◽  
pp. 431-437 ◽  
Author(s):  
M. H. Bijan-Zadeh ◽  
R. Y. Sharp

In (11) and (12), a comparatively elementary approach to the use of dualizing complexes in commutative algebra has been developed. Dualizing complexes were introduced by Grothendieck and Hartshorne in (2) for use in algebraic geometry; the approach to dualizing complexes in (11) and (12) differs from that of Grothendieck and Hartshorne in that it avoids use of the concepts of triangulated category, derived category, and localization of categories, and instead places great emphasis on the concept of quasi-isomorphism of complexes of modules over a commutative Noetherian ring.


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