Thomas A. Wasserman

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math.GR2026

Solid Duality for Profinite Groups

Ged Corob Cook, Max Gheorghiu, SofÃa Marlasca Aparicio +1

We classify profinite groups that have a PoincarÃ©-like duality between their homology and cohomology. Our proofs work over every profinite coefficient ring, and for profinite as w…

math.GR2025

Cohen--Macaulay Complexes, Duality Groups, and the dualizing module of $Out (F_{N})$

Richard D. Wade, Thomas A. Wasserman

We explain how Cohen--Macaulay classifying spaces are ubiquitous among discrete groups that satisfy Bieri--Eckmann duality, and compare Bieri--Eckmann duality to duality results fo…

Solid Duality for Profinite Groups

Cohen--Macaulay Complexes, Duality Groups, and the dualizing module of Out(FN​)

Cohen--Macaulay Complexes, Duality Groups, and the dualizing module of $Out (F_{N})$