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Δ-sets i: homotopy theory
Colin Rourke,B. J. Sanderson +1 more
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This article is published in Quarterly Journal of Mathematics.The article was published on 1971-09-01. It has received 102 citations till now. The article focuses on the topics: n-connected & Regular homotopy.read more
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The cyclotomic trace and algebraic K-theory of spaces
TL;DR: The cyclotomic trace as discussed by the authors is a map from algebraic K-theory of a group ring to a certain topological refinement of cyclic homology, and it can be defined also for groups up to homotopy.
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Ends of maps, II
TL;DR: In this paper, finiteness obstruction and simple homotopy theory within e over X were developed for manifolds, and applied to study equivariant mapping cylinder neighborhoods in topological group actions, triangulations of locally triangulable spaces, and block bundle structures on approximate fibrations.
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A parametrized index theorem for the algebraic K-theory Euler class
TL;DR: In this paper, a family index theorem for fiber bundles with compact topological manifold fibers was proved, in which the relevant index equation involves algebraic K-theory, and it was shown that the topologically defined wrong-way map is the homotopy transfer of Becker-Gottlieb and Dold.
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Homological stability for automorphism groups
TL;DR: In this paper, a family of groups admitting a braided monoidal structure is constructed, and the authors show that homological stability holds with both polynomial and abelian twisted coefficients, with no further assumptions.
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The cyclic homology of an exact category
TL;DR: McCarthy et al. as discussed by the authors defined Hochschild and cyclic homology groups for an exact category which generalize the usual definitions when one considers finitely generated projective modules.