2 citations to https://www.mathnet.ru/rus/zvmmf4838
-
Х. Д. Икрамов, “О комплексных матрицах с простым спектром, унитарно подобных вещественным матрицам”, Ж. вычисл. матем. и матем. физ., 51:4 (2011), 547–554 ; Kh. D. Ikramov, “On complex matrices with simple spectrum that are unitarily similar to real matrices”, Comput. Math. Math. Phys., 51:4 (2011), 505–512
-
Kh. D. Ikramov, “Constructive sufficient conditions for the existence of a unitary similarity transformation that converts a given complex matrix into a real one”, Dokl. Math., 82:1 (2010), 563