Skip to main content
Go to the home page of the European Commission (opens in new window)
English en
CORDIS - EU research results
CORDIS

Asymptotic properties of moment polytopes of tensors

Project description

Elucidating the behaviour of moment polytopes

Moment polytopes provide a geometric way to represent information about the dynamics of a system with symmetries. They are important in fields including representation theory and quantum physics. With the support of the Marie Skłodowska-Curie Actions programme, the AsympTensorPolytope project aims to study the behaviour of moment polytopes of families of tensors and their ability to prove bounds on (asymptotic) tensor rank and subrank. In particular, the project will study the moment polytopes of unit tensors and of matrix multiplication tensors to investigate whether their moment polytopes are distinct from the generic polytopes of their respective format. The techniques will be applicable to other areas including bosonic or fermionic systems, algebras and quiver representations.

Objective

In AsympTensorPolytope I will study the behavior of moment polytopes of families of tensors, as well as their ability to prove bounds on (asymptotic) tensor rank and subrank. I aim to determine properties of the moment polytopes of the unit tensors of varying ranks, as well as matrix multiplication tensors, in particular whether they are distinct from the generic polytopes of their respective format.
To achieve this, I will use a combination of the various different descriptions of moment polytopes, which come in representation-theoretic, symplectic-geometric, intersection-theoretic, or more combinatorial forms. In particular, I will study the behavior of moment polytopes under taking direct sums and Kronecker products of tensors, as well as recently obtained computational results.
The project has the potential of proving new bounds on the complexity of various tensors, as well as furthering our understanding of Strassen's asymptotic spectrum of tensors. The techniques here can also be extended to understand other settings, such as symmetric or antisymmetric tensors (bosonic or fermionic systems), algebras and quiver representations. As a result, AsympTensorPolytope will have an impact in other contexts such as the complexity of matrix multiplication, quantum information theory and combinatorics.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

See all projects funded under this funding scheme

Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

See all projects funded under this call

Coordinator

KOBENHAVNS UNIVERSITET
Net EU contribution
€ 247 553,28
Address
NORREGADE 10
1165 KOBENHAVN
Denmark
Region
Danmark Hovedstaden Byen København
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data