Spectrum of a Dilated Honeycomb Network
Spectrum of a Dilated Honeycomb Network
复制标题
扩张蜂窝网络的频谱
DOI:
10.1007/s00020-014-2194-1
复制
发表时间:
2014
影响因子:
0.8
通讯作者:
Ondřej Turek
中科院分区:
文献类型:
--
作者:
P. Exner;Ondřej Turek
We analyze spectrum of Laplacian supported by a periodic honeycomb lattice with generally unequal edge lengths and a δ type coupling in the vertices. Such a quantum graph has nonempty point spectrum with compactly supported eigenfunctions provided all the edge lengths are commensurate. We derive conditions determining the continuous spectral component and show that existence of gaps may depend on number-theoretic properties of edge lengths ratios. The case when two of the three lengths coincide is discussed in detail.
DOI:
--
发表时间:
2004
期刊:
Kyushu Journal of Mathematics 58
影响因子:
--
作者:
H.Kazama;K.N.Kim
通讯作者:
K.N.Kim