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pro vyhledávání: '"Khakim D. Ikramov"'
Autor:
Khakim D. Ikramov
Publikováno v:
Computational Mathematics and Mathematical Physics. 61:1743-1749
Autor:
Khakim D. Ikramov
Publikováno v:
Matematicheskie Zametki. 110:65-74
Если коквадраты комплексных матриц $A$ и $B$ подобны и в спектре коквадратов имеется хотя бы одно число с модулем $1$, то $A$ и $B$ не обязательн
Autor:
Khakim D. Ikramov
Publikováno v:
Итоги науки и техники. Серия «Современная математика и ее приложения. Тематические обзоры». 175:19-26
Дан обзор важнейших фактов, относящихся к матричным преобразованиям конгруэнции, псевдоподобия и унитарной конгруэнции. Сформулирован
Autor:
Khakim D. Ikramov
Publikováno v:
Doklady Mathematics. 99:211-213
Autor:
Khakim D. Ikramov
Publikováno v:
Matematicheskie Zametki. 101:854-859
Publikováno v:
Mathematical Notes. 99:3-8
The duality relation in the title of the paper is an identity between the groups of unitary automorphisms acting in the space of Toeplitz or Hankel matrices by similarity or congruence. A simple answer is given to the question why such identities can
Publikováno v:
Matematicheskie Zametki. 99:3-10
Autor:
Khakim D. Ikramov
Publikováno v:
Matematicheskie Zametki. 100:739-743
Autor:
Khakim D. Ikramov
Publikováno v:
Linear and Multilinear Algebra. 63:1901-1908
The matrix operator defined by the left-hand side of the Bevis–Hall–Hartwig equation(briefly, the BHH operator) is not linear in the space of complex matrices . However, it becomes a linear operator if every matrix is replaced by the pair of real
Autor:
Khakim D. Ikramov
Publikováno v:
Linear and Multilinear Algebra. 63:862-867
A Hankel circulant is a matrix obtained by reversing the order of columns (or rows) in a conventional circulant. A Toeplitz-plus-Hankel circulant (briefly, ()-circulant) is the sum of a circulant and a Hankel circulant. Bozzo discovered that the set