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Details of Grant 

EPSRC Reference: EP/X038424/1
Title: Classifying spaces, proper actions and stable homotopy theory
Principal Investigator: Patchkoria, Dr I
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Mathematical Sciences
Organisation: University of Aberdeen
Scheme: New Investigator Award
Starts: 01 July 2023 Ends: 30 June 2026 Value (£): 298,276
EPSRC Research Topic Classifications:
Algebra & Geometry
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:
Panel DatePanel NameOutcome
28 Feb 2023 EPSRC Mathematical Sciences Prioritisation Panel February 2023 Announced
Summary on Grant Application Form
Primary goal of this project is to compute invariants of discrete groups coming from stable homotopy theory. Secondary goal is to explore connections of these computations with number theory.

The project deals with invariants of infinite discrete groups coming from stable homotopy theory, such as Morava K-theories and Morava E-theories. These invariants generalise the classical Euler characteristic and topological K-theory. For finite groups they are well-known and studied by Hopkins-Kuhn-Ravenel. For K-theory these invariants for infinite groups were computed by Lück and coathors. We plan to generalise both these computations.

For Morava K-theories of infinite groups we expect to obtain a formula for the Morava K-theoretic Euler characteristic using centralisers. For Morava E-theory we plan to generalise the Hopkins-Kuhn-Ravenel character theory from finite to infinite groups.

Finally, we will apply these results to concrete groups. Concrete formulas coming out of these should be of number theoretic nature. Some of them will contain values of Dedekind and Riemann zeta functions.

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Organisation Website: http://www.abdn.ac.uk