Opendata, web and dolomites


Moduli Spaces, Manifolds and Arithmetic

Total Cost €


EC-Contrib. €






Project "MSMA" data sheet

The following table provides information about the project.


Organization address
address: NORREGADE 10
postcode: 1165

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Denmark [DK]
 Total cost 1˙991˙061 €
 EC max contribution 1˙991˙061 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-CoG
 Funding Scheme ERC-COG
 Starting year 2016
 Duration (year-month-day) from 2016-06-01   to  2021-11-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    KOBENHAVNS UNIVERSITET DK (KOBENHAVN) coordinator 1˙991˙061.00


 Project objective

This proposal concerns the application of homotopy theoretic methods to multiple questions of geometric nature, and in particular the study of moduli spaces. Firmly based in topology, the research proposed here is strongly motivated by applications and potential applications to differential geometry, algebraic geometry and especially number theory. Any “moduli space” parametrizes how certain objects may vary in families. The moduli spaces of manifolds parametrize how smooth manifolds may vary in families (smooth fiber bundles), and the representation varieties studied in the second major component parametrize how linear representations of a group may vary in algebraic families.

The homotopy theoretic study of moduli spaces of manifolds has seen spectacular successes in the last 15 years, kickstarted by a theorem of Madsen and Weiss concerning the topology of moduli spaces of 2-dimensional manifolds. Very recently, anongoing collaboration between O. Randal-Williams and myself promises to establish analoguous results for manifolds of higher dimension. If funded, the research proposed here will bring this research program to a point where all major results about surface moduli spaces have proven analogues for manifolds of higher dimension. The second major component of this proposal has strong number-theoretic origins, but is essentially homotopy theoretic. It concerns the study of universal deformations of representations of (Galois) groups. If funded, the research in this component of the proposal, joint with Akshay Venkatesh, will develop derived (simplicial) deformation rings. Classical deformation rings have had spectacular applications in number theory (starting with Wiles’ work) and we also propose to begin the study of applications ofderived deformation rings.

Finally, the proposal contains smaller or more speculative projects, and points out many questions which might be suitable for the Ph.D.-students and postdocs also applied for in this proposal.


year authors and title journal last update
List of publications.
2019 Manuel Krannich
On characteristic classes of exotic manifold bundles
published pages: , ISSN: 0025-5831, DOI: 10.1007/s00208-019-01847-y
Mathematische Annalen 2019-08-29
2020 Gijs Heuts
Goodwillie approximations to higher categories
published pages: accepted for pub, ISSN: 0065-9266, DOI:
Memoirs of the AMS 2019-08-29
2019 Alexander Kupers
Some finiteness results for groups of automorphisms of manifolds
published pages: to appear, ISSN: 1465-3060, DOI:
Geometry and Topology 2019-08-29
2020 Søren Galatius, Alexander Kupers, Oscar Randal-Williams
Cellular E_k algebras
published pages: , ISSN: , DOI:
preprint 2019-08-29
2020 Alexander Kupers, Oscar Randal-Williams
On the cohomology of Torelli groups
published pages: , ISSN: , DOI:
preprint 2019-08-29
2019 Søren Galatius, Alexander Kupers, Oscar Randal-Williams
E 2 $E_{2}$ -cells and mapping class groups
published pages: , ISSN: 0073-8301, DOI: 10.1007/s10240-019-00107-8
Publications mathématiques de l\'IHÉS 2019-08-29

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