Objective
Linear operators are used to describe a great variety of physical phenomena. Depending on the kind of problem, the operators may appear as finite or infinite matrices, as integral operators or as ordinary and partial differential operators. Two important methods exist to study operators in Hilbert and Krein spaces, each of which has a long and outstanding history. The first method consists of extending a given operator to one acting on a larger space and with simpler properties. The second approach is based on the construction of canonical models for operators. Functional models provide powerful tools to study non-selfadjoint Hilbert space operators that are close to unitary or selfadjoint ones. Extension of operators originates in the theory of symmetric operators. Both approaches enable the study of operators by methods of complex function theory and, vice versa, the study of complex function theory problems by methods of operator theory.
The purpose of the project is to employ and further develop these two methods. The objectives are the following: to study the classification of operators under similarity and quasi-similarity (in particular to describe the spectra of selfadjoint extensions of symmetric operators and symmetric linear relations and to study the analytic matrix and operator functions that are involved); to investigate the functional models determined by transfer functions of dynamical systems; to develop a non-stationary version of the model theory; to develop scattering theory for non-selfadjoint operators in terms of functional models and for pairs of selfadjoint extensions of a single symmetric operator (including trace formula and spectral shift function); and to study inverse problems of mathematical physics.
Fields of science (EuroSciVoc)
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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.
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.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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.
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Coordinator
1081 HV 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.