Project description
Exploring how vibration in hyperbolic surfaces affects their geometry
Spectral geometry studies how an object’s vibration frequencies (eigenfrequencies) and their associated modes (eigenfunctions) relate to its geometric shape. Although this research field is applied in various areas, including quantum mechanics and seismic waves, it poses several unresolved theoretical questions in mathematics. The ERC-funded InSpeGMoS project will deal with hyperbolic surfaces, exploring how adjusting these surface parameters affects their geometry and spectrum. Researchers will seek to identify spectral and geometric phenomena that occur in 99 % of cases from a probabilistic perspective. The team will develop new integration techniques on moduli space, seek new coordinates, generalise Mirzakhani’s study of volume functions, and employ random graph theory to advance probabilistic methods in the spectral theory of random surfaces.
Objective
Each physical object possesses specific frequencies of vibrations, called its eigenfrequencies, at which it enters in resonance under an external stimulus. In mathematical terms these frequencies are the eigenvalues of a linear operator; they form the spectrum of the object. Spectral geometry is concerned with understanding how the spectrum of an object, as well as the modes of vibration (eigenfunctions) associated to each eigenfrequency, are related to its geometric shape. This is a wide area of research, with applied and interdisciplinary aspects (electromagnetic waves, vibrating solids, seismic waves, wave functions in quantum mechanics... ), but also involving very theoretical mathematics, with many natural questions still open: What can we learn about the topology or geometry of an object by observing its spectrum? Can we predict if the vibrations will be localized in a small part of the object or on the contrary, if they will take place everywhere ? Can we construct an object and be sure that certain frequencies are in the spectrum, or, on the opposite, be sure to avoid certain sets of frequencies ? Can there be objects of arbitrarily large size, with no small eigenfrequencies ? Project InSpeGMoS deals with a specific mathematical model : hyperbolic surfaces. The Moduli Space is a space of parameters of these surfaces that we can tune, and observe how the geometry and the spectrum vary. In the semiclassical regime (when the wavelength is small compared to the size of the object), it is expected that certain spectral features are universal. We will adopt a probabilistic point of view: try to exhibit spectral and geometric phenomena that happen in 99$% of cases. The project is focussed on developing new integration techniques on Moduli Space. We shall look for new coordinates, generalize Mirzakhanis study of volume functions, and seek inspiration in Random Graph Theory to develop new probabilistic methods in the spectral theory of random surfaces.
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 topology
- 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.1.1 - European Research Council (ERC)
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-ERC - HORIZON ERC Grants
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) ERC-2022-ADG
See all projects funded under this callHost institution
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.
67081 STRASBOURG
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.