Project description
Understanding operators and hypercyclic algebras in Banach spaces
Fundamental questions in functional analysis remain unresolved, particularly regarding the structure of composition operators on Banach spaces of Dirichlet series and the existence of hypercyclic algebras in Banach settings. These gaps limit progress on problems linked to key mathematical challenges. Supported by the Marie Skłodowska-Curie Actions programme, the CoDSABA project will address these issues by advancing the theory of composition operators through the study of approximation numbers and their decay rates, as well as by characterising their linear combinations. It will also investigate the algebraic structure of hypercyclic vectors for multiplication operators on Banach algebras. The goal is to generate findings with broad relevance, including potential applications in dynamical systems, physics and quantum information theory.
Objective
This project will investigate timely questions on composition operators acting on Banach spaces of Dirichlet series, and on hypercyclic algebras. These topics are currently the subject of great mathematical interest, however fundamental questions remain unresolved in the respective fields. The first objective is to advance the theory of Banach spaces of Dirichlet series by employing operator theoretic function theory to understand the topological structure of the set of composition operators acting on these spaces. An effective method of achieving this is to study approximation numbers of differences of composition operators. This project will determine the rates of decay of approximation numbers of differences of composition operators acting on spaces of Dirichlet series, and characterise the linear combinations of composition operators acting on general Banach spaces of Dirichlet series. The second objective is to investigate the algebraic structure contained in the set of hypercyclic vectors of multiplication operators acting on the Banach algebra of compact operators. Hitherto work in this area has mostly been in the setting of Frchet algebras, so this project will advance the theory for Banach algebras, and ultimately to identify whether every Banach algebra supports a hypercyclic algebra. Interest among the wider mathematical community in the findings of this project stems from its natural connections to some of the most important open questions in mathematics. In particular the study of Hardy spaces of Dirichlet series is related to the Riemann zeta function, and the investigation of hypercyclic algebras has a natural connection to the Invariant Subspace Problem. The scientific breakthroughs resulting from this project will also impact on a wide scientific community, where the results and methods will potentially find applications in dynamical systems, mathematical physics, physics, computer science and quantum information theory.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2021-PF-01
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
63000 Clermont-Ferrand
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.