EntityQ6414983· pop 5· linked from 16 articlesKirby–Siebenmann classSign in to saveCohomology class of topological structuresConnectionsmathematicsEntityInternational Standard Book NumberEntitytopologyEntityQ118398EntityMichael FreedmanEntitytopological manifoldEntitycohomologyEntityRobion KirbyEntityEilenberg–MacLane spaceEntityE8 manifoldEntityLaurent C. SiebenmannEntityCategoriesGeometric topologyHomology theoryStructures on manifoldsSurgery theory