Objective
This MSCA project studies the Fourier transform of dynamically defined fractal measures. Determining whether the Fourier transform decays to zero, and if so then at what rate, provides important information about the measure. There has been an explosion of interest in this topic in the past few years, spurred by a wealth of applications: Fourier decay is connected to a wide range of problems from harmonic analysis, Diophantine approximation, additive combinatorics, and quantum chaos.
Up to now, most of the literature has focused on the Fourier decay of self-similar measures in dimensions one and two. The aim of this project is to build a theory covering measures generated by non-linear dynamics, and in arbitrary dimensions. One of the main objectives is to use novel transfer operator methods to characterise when measures generated by non-linear analytic conformal dynamics have power Fourier decay. Another goal is to make substantial improvements to the bounds for the decay exponent in many cases. The new Fourier decay estimates will be applied to establish fractal analogues of fundamental theorems of Khintchine and Gallagher in Diophantine approximation, and obtain new fractal uncertainty principles and Fourier restriction estimates in harmonic analysis.
The researcher (PhD 2023) already has a track record of multiple cutting-edge works on the theory of Fourier decay of fractal measures, and on the dimension theory of iterated function systems. He therefore has the ideal blend of expertise in both fractal geometry and Fourier transforms to complete the ambitious objectives. The project will take place at the University of Jyväskylä in the group of T. Orponen, an ERC grantee working at the interface of fractal geometry and harmonic analysis.
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.
- natural sciences mathematics pure mathematics geometry
- natural sciences mathematics pure mathematics discrete mathematics combinatorics
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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-2024-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.
40100 Jyvaskyla
Finland
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.