Zobrazeno 1 - 10
of 423
pro vyhledávání: '"Deng, Youjun"'
We investigate the electromagnetic field concentration between two nearly-touching inclusions that possess high-contrast electric permittivities in the quasi-static regime. By using layer potential techniques and asymptotic analysis in the low-freque
Externí odkaz:
http://arxiv.org/abs/2403.12697
In this paper, we study the recovery of multi-layer structures in inverse conductivity problem by using one measurement. First, we define the concept of Generalized Polarization Tensors (GPTs) for multi-layered medium and show some important properti
Externí odkaz:
http://arxiv.org/abs/2312.02421
The presence of magnetized anomalies in the shell of the Earth interrupts its geomagnetic field. We consider the inverse problem of identifying the anomalies by monitoring the variation of the geomagnetic field. Motivated by the theoretical unique id
Externí odkaz:
http://arxiv.org/abs/2301.12218
Multi-layer structures are ubiquitous in constructing metamaterial devices to realise various frontier applications including super-resolution imaging and invisibility cloaking. In this paper, we develop a general mathematical framework for studying
Externí odkaz:
http://arxiv.org/abs/2302.13983
We are concerned with the field concentration between two nearly-touching inclusions with high-contrast material parameters, which is a central topic in the theory of composite materials. The degree of concentration is characterised by the blowup rat
Externí odkaz:
http://arxiv.org/abs/2211.05609
Autor:
Fang, Xiaoping, Deng, Youjun
In this paper, we consider the plasmon resonance in multi-layer structures. The conductivity problem associated with uniformly distributed background field is considered. We show that the plasmon mode is equivalent to the eigenvalue problem of a matr
Externí odkaz:
http://arxiv.org/abs/2201.12492
Plasmon resonance is the resonant oscillation of conduction electrons at the interface between negative and positive permittivity material stimulated by incident light, which forms the fundamental basis of many cutting-edge industrial applications. W
Externí odkaz:
http://arxiv.org/abs/2112.03697
The transmission eigenvalue problem is a type of non-elliptic and non-selfadjoint spectral problem that arises in the wave scattering theory when invisibility/transparency occurs. The transmission eigenfunctions are the interior resonant modes inside
Externí odkaz:
http://arxiv.org/abs/2109.14361
Publikováno v:
In Nonlinear Analysis: Real World Applications August 2024 78
In this paper, we are concerned with the gradient estimate of the electric field due to two nearly touching dielectric inclusions, which is a central topic in the theory of composite materials. We derive accurate quantitative characterisations of the
Externí odkaz:
http://arxiv.org/abs/2107.13839