Operators, Operator Families and Asymptotics

Project: Research-related funding

Project Details


Programme Committee:

Kirill Cherednichenko (University Bath), Fritz Gesztesy (University of Mussouri),
Peter Kuchment (Texas A&M University), Marco Marletta (Cardiff University),
Graeme Milton (University of Utah), Leonid Parnovsky (University College London)

Speaker selection process:
Each member of the Programme Committee nominated up to 4 speakers (1 from US, 2 from continental Europe, and 1 from the UK). Each nomination had to be approved for invitation by at least 3 members of the Committee.

Meeting summary:
The conference is aimed at making an overview of the state of the art in a rapidly developing area of analysis concerned with application of the techniques of operator theory to the asymptotic analysis of parameter-dependent differential equations and boundary-value problems. From the physical point of view, the parameter normally represents a length-scale in the situation modelled by the equation: for example, a wavelength in wave propagation, or the inhomogeneity size in the theory of periodic composites. The theory of linear operators in a Hilbert space (symmetric, self-adjoint, dissipative, non-selfadjoint), which has enjoyed several decades of outstanding progress, had been, for much of its time, restricted to abstract analysis of general classes of operators, accompanied by ad-hoc examples and applications to perturbations of the Laplace operator. The meeting is aimed at making a step-change in re-assessing the existing body of knowledge in the related areas, as a modern operator-theoretic version of the classical asymptotic analysis. This will generate new research directions in the asymptotic study of operator families, where the abstract and applied streams are aligned with each other, and help promoting the UK as a leader in the related area of applied analysis.  

The above subject area is currently in the state of maturing for the next breakthrough in the applications of mathematics to the real-world technologies that depend on understanding the behaviour of solutions to parameter-dependent boundary-value problems of mathematical physics. One notable example of this interaction is found in the development of techniques for manufacturing composite materials that exhibit negative refraction (so-called “metamaterials”): analysis of operators and their families offers a cost-effective way to explore possible ways to obtain such composites, and vice versa, the practical needs give a massive stimulus to further development of this classical area of analysis. This is why academic communities of the leading world economies (Germany, France, UK, US) are actively seeking to establish themselves as leaders in the related subject area within mathematics. The conference will help maintaining UK as an important player in this very dynamic process. Conferences of this kind that have taken place elsewhere in the world have helped setting up some outstanding collaboration networks in the area during the last 3-5 years, and it is highly important to set up a similar centre of activity in the UK.

Key findings

Conference report to follow
Short title£6795
Effective start/end date1/11/151/11/16