Irreducibility of the Fermi surface for planar periodic graph operators
Irreducibility of the Fermi surface for planar periodic graph operators
复制标题
平面周期图算子费米面的不可约性
DOI:
10.1007/s11005-020-01311-y
复制
发表时间:
2020
影响因子:
1.2
通讯作者:
Shipman, Stephen P.
中科院分区:
文献类型:
--
作者:
Li, Wei;Shipman, Stephen P.
We prove that the Fermi surface of a connected doubly periodic self-adjoint discrete graph operator is irreducible at all but finitely many energies provided that the graph (1) can be drawn in the plane without crossing edges, (2) has positive coupling coefficients, (3) has two vertices per period. If “positive” is relaxed to “complex,” the only cases of reducible Fermi surface occur for the graph of the tetrakis square tiling, and these can be explicitly parameterized when the coupling coefficients are real. The irreducibility result applies to weighted graph Laplacians with positive weights
登录
查看更多内容
DOI:
10.3929/ethz-a-000579584
发表时间:
1988
期刊:
arXiv: Mathematical Physics
影响因子:
--
作者:
D. Bättig
通讯作者:
D. Bättig
影响因子:
2.4
作者:
P. Kuchment;B. Vainberg
通讯作者:
B. Vainberg
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Nader Masmoudi;Kenji Nakanishi;Yusuke Okuyama;三浦 英之;Yusuke Okuyama and Malgorzata Stawiska;K. Ito
通讯作者:
K. Ito
影响因子:
1.3
作者:
Do, Ngoc;Kuchment, Peter;Sottile, Frank
通讯作者:
Sottile, Frank
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
D. Bättig;H. Knörrer;E. Trubowitz
通讯作者:
E. Trubowitz