Project description
Iterated monodromy groups shed light on different faces of complexity
The theory of iterated monodromy groups (IMGs) is an active, relatively young branch of mathematics at the interface of dynamical systems and geometric group theory. IMGs provide a concise, efficiently computable algebraic way of encoding a dynamical system, such as the iteration of a rational map. This has already allowed solving several fundamental questions in complex dynamics in the last two decades. With the support of the Marie Sklodowska-Curie Actions programme, the CODAG project will explore the structure and properties of IMGs. The overall goal is to employ IMGs to develop new relations between different measures of complexity of dynamical systems, fractal sets, and groups.
Objective
The overall goal of the project is to study relations between different measures of complexity of dynamical systems, fractal sets, and groups. The main objects of our interest are iterated monodromy groups (IMGs), which are self-similar groups naturally associated to certain dynamical systems, such as the iteration of a rational map on the Riemann sphere. IMGs provide a prominent bridge between dynamical systems and geometric group theory, and their study has been a vibrant topic in the last 20 years. In the project, we will focus on three aspects of this modern research.
Subproject A: Decomposition theory of maps and groups
In a recent work with collaborators, I established a novel decomposition theorem for rational maps based on the structure of their Julia sets. I aim to extend this result to the case of contracting self-similar groups, which will provide a new entry to the renowned Sullivan dictionary. I will also explore computational aspects of IMGs and implement the decomposition in the computer algebra system GAP.
Subproject B: Algebraic properties of IMGs
Quite unexpectedly, the IMGs of even very simple maps provide examples of groups with interesting properties that are exotic from the point of view of classical group theory. However, we still lack general theory that will unify these nice examples. The main objective in this research direction is to relate dynamical properties of maps to algebraic properties, such as growth and amenability, of the respective IMGs.
Subproject C: Spectral properties of Schreier graphs of IMG
The study of the Laplacian spectrum and spectral measures occupies a significant place in the geometric group theory. Computations of spectra for the Schreier graphs of self-similar groups have recently been an active filed of research. Surprisingly, it connects to multidimensional dynamics and Schroedinger operators associated to aperiodic order. The goal of this subproject is to explore such connections in the case of IMGs.
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 algebra
- natural sciences mathematics pure mathematics geometry
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
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.
-
HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
See all projects funded under this programme
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
See all projects funded under this funding scheme
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
See all projects funded under this callCoordinator
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.
1012WX Amsterdam
Netherlands
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.