Topological band theory of a generalized eigenvalue problem with Hermitian matrices: Symmetry-protected exceptional rings with emergent symmetry
2014 ◽
Vol 7
(6)
◽
pp. 2583-2599
◽
2011 ◽
Vol 434
(11)
◽
pp. 2269-2284
◽
1981 ◽
Vol 2
(2)
◽
pp. 141-152
◽