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Matematicheskie Zametki, 2015, Volume 98, Issue 1, Pages 76–84
DOI: https://doi.org/10.4213/mzm10639 (Mi mzm10639) 		 
This article is cited in 2 scientific papers (total in 2 papers)

Unitary Automorphisms of the Space of Hankel Matrices: II. The Case of Even Order

Kh. D. Ikramov

Lomonosov Moscow State University
Full-text PDF (403 kB) Citations (2)
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DOI: https://doi.org/10.4213/mzm10639
Abstract: Earlier, for odd $n$, the author described unitary $n\times n$ matrices $U$ with the following property: if $H$ is a Hankel matrix, then $U^*HU$ is a Hankel matrix as well. In the present paper, it is shown that this description also holds for even $n$ starting from $n = 4$.
Keywords: Hankel matrix, unitary matrix, backward identity matrix, automorphism, Klein four-group, similarity transformation.
Received: 07.05.2014
English version:
Mathematical Notes, 2015, Volume 98, Issue 1, Pages 90–97
DOI: https://doi.org/10.1134/S0001434615070081
Bibliographic databases:
Document Type: Article
UDC: 517.4
Language: Russian
Citation: Kh. D. Ikramov, “Unitary Automorphisms of the Space of Hankel Matrices: II. The Case of Even Order”, Mat. Zametki, 98:1 (2015), 76–84; Math. Notes, 98:1 (2015), 90–97
Citation in format AMSBIB
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