Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Wood I"'
Autor:
Turrini, A. A., Harman-Clarke, A., Fennell, T., Wood, I. G., Henelius, P., Bramwell, S. T., Holdsworth, P. C. W.
We present a comprehensive experimental and theoretical study of the kagome ice Coulomb phase, that explores the fine tuning of critical correlations by applied field, temperature and crystal orientation. The continuous modification of algebraic corr
Externí odkaz:
http://arxiv.org/abs/2102.06546
Publikováno v:
Integral Equations and Operator Theory 2019
This paper discusses how much information on a Friedrichs model operator can be detected from `measurements on the boundary'. We use the framework of boundary triples to introduce the generalised Titchmarsh-Weyl $M$-function and the detectable subspa
Externí odkaz:
http://arxiv.org/abs/1908.11717
This paper considers the propagation of TE-modes in photonic crystal waveguides. The waveguide is created by introducing a linear defect into a periodic background medium. Both the periodic background problem and the perturbed problem are modelled by
Externí odkaz:
http://arxiv.org/abs/1901.05102
In this article we develop a functional model for a general maximal dissipative operator. We construct the selfadjoint dilation of such operators. Unlike previous functional models, our model is given explicitly in terms of parameters of the original
Externí odkaz:
http://arxiv.org/abs/1804.08963
We discuss the detectable subspaces of an operator. We analyse the relation between the M-function (the abstract Dirichlet to Neumann map) and the resolvent bordered by projections onto the detectable subspaces. The abstract results are explored furt
Externí odkaz:
http://arxiv.org/abs/1404.6820
The spectrum of periodic differential operators typically exhibits a band-gap structure. In this paper, we will consider perturbations to periodic differential operators and investigate the spectrum the perturbation induces in the gaps. More specific
Externí odkaz:
http://arxiv.org/abs/1306.6256
In this paper we investigate spectral properties of Lapla- cians on Rooms and Passages domains. In the first part, we use Dirichlet- Neumann bracketing techniques to show that for the Neumann Lapla- cian in certain Rooms and Passages domains the seco
Externí odkaz:
http://arxiv.org/abs/1301.4396
In this paper, we combine results on extensions of operators with recent results on the relation between the M-function and the spectrum, to examine the spectral behaviour of boundary value problems. M-functions are defined for general closed extensi
Externí odkaz:
http://arxiv.org/abs/0803.3630