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20062026
most citedWieler solenoids, Cuntz-Pimsner algebras and K-theory

14 citations · 47 across the 28 of their papers we have counts for

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16 papers · 1 filter

math.KT2026

Bordisms and unbounded -theory

Robin J. Deeley, Magnus Goffeng, Bram Mesland

This monograph studies -theory in its unbounded model. The central object is the -bordism group obtained by imposing the -bordism relation on unbounded -cycles. In…

math.KT2024

The rational HK-conjecture: transformation groupoids and a revised version

Robin J. Deeley, Rufus Willett

We prove the rational HK-conjecture for a large class of transformation groupoids in the case when the relevant action has torsion-free stabilizers. A revised version of the ration…

math.KT2022★ 2 cited

Invariants for the Smale space associated to an expanding endomorphism of a flat manifold

Rachel Chaiser, Maeve Coates-Welsh, Robin J. Deeley +7

We study invariants associated to Smale spaces obtained from an expanding endomorphism on a (closed connected Riemannian) flat manifold. Specifically, the relevant invariants are t…

math.KT2021

A counterexample to the HK-conjecture that is principal

Robin J. Deeley

Scarparo has constructed counterexamples to Matui's HK-conjecture. These counterexample and other known counterexamples are essentially principal but not principal. In the present…

math.KT2017★ 2 cited

Relative geometric assembly and mapping cones, Part II: Chern characters and the Novikov property

Robin J. Deeley, Magnus Goffeng

We study Chern characters and the assembly mapping for free actions using the framework of geometric -homology. The focus is on the relative groups associated with a group homom…

math.KT2015★ 6 cited

Relative geometric assembly and mapping cones, Part I: The geometric model and applications

Robin J. Deeley, Magnus Goffeng

Inspired by an analytic construction of Chang, Weinberger and Yu, we define an assembly map in relative geometric -homology. The properties of the geometric assembly map are stu…

math.KT2015

The bordism group of unbounded KK-cycles

Robin J. Deeley, Magnus Goffeng, Bram Mesland

We consider Hilsum's notion of bordism as an equivalence relation on unbounded -cycles and study the equivalence classes. Upon fixing two -algebras, and a -subalgebra d…

math.KT2014

Realizing the analytic surgery group of Higson and Roe geometrically, Part III: Higher invariants

Robin Deeley, Magnus Goffeng

We construct an isomorphism between the geometric model and Higson-Roe's analytic surgery group, reconciling the constructions in the previous papers in the series on "Realizing th…

math.KT2014★ 3 cited

Realizing the analytic surgery group of Higson and Roe geometrically, Part II: Relative eta-invariants

Robin Deeley, Magnus Goffeng

We apply the geometric analog of the analytic surgery group of Higson and Roe to the relative -invariant. In particular, by solving a Baum-Douglas type index problem, we give a…

math.KT2014

Index theory for manifolds with Baas-Sullivan singularities

Robin J. Deeley

We study index theory for manifolds with Baas-Sullivan singularities using geometric K-homology with coefficients in a unital C*-algebra. In particular, we define a natural analog…

math.KT2013★ 5 cited

Realizing the analytic surgery group of Higson and Roe geometrically, Part I: The geometric model

Robin Deeley, Magnus Goffeng

We construct a geometric analog of the analytic surgery group of Higson and Roe for the assembly mapping for free actions of a group with values in a Banach algebra completion of t…

math.KT2013

Analytic and topological index maps with values in the K-theory of mapping cones

Robin J. Deeley

Index maps taking values in the -theory of a mapping cone are defined and discussed. The resulting index theorem can be viewed in analogy with the Freed-Melrose index theorem. T…

math.KT2012

Applying geometric K-cycles to fractional indices

Robin J. Deeley, Magnus Goffeng

A geometric model for twisted -homology is introduced. It is modeled after the Mathai-Melrose-Singer fractional analytic index theorem in the same way as the Baum-Douglas model…

math.KT2012

R/Z-valued index theory via geometric K-homology

Robin J. Deeley

A model of K-homology with coefficients in a mapping cone using the framework of the geometric cycles of Baum and Douglas is developed. In particular, this leads to a geometric rea…

math.KT2011

Geometric -homology with coefficients II

Robin J. Deeley

We discuss the analytic aspects of the geometric model for -homology with coefficients in constructed in "Geometric K-homology with coefficients I". In…

math.KT2011★ 5 cited

Geometric K-homology with coefficients I

Robin J. Deeley

We construct a Baum-Douglas type model for -homology with coefficients in . The basic geometric object in a cycle is a -…