Results 31 to 40 of about 55,699 (240)
D-Optimal Designs with Hadamard Matrix
Journal of Mathematical Analysis and Applications, 1993 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chow, K.L., Lii, K.S.
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An Hadamard matrix of order 36
Journal of Combinatorial Theory, Series A, 1983 AbstractThe Hadamard matrix presented in this paper is probably the only Hadamard matrix which does not appear in the series and possesses a 2-transitive (on rows or columns) automorphism group.
Ito, Noboru, Leon, Jeffrey S
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Simultaneous kernels of matrix Hadamard powers [PDF]
Linear Algebra and its Applications, 2019 12 pages. Final version, to appear in Linear Algebra and its Applications (the journal version is longer)
Alexander Belton +3 more
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On an inequivalence criterion for cocyclic Hadamard matrices [PDF]
, 2010 Given two Hadamard matrices of the same order, it can be quite difficult to decide whether or not they are equivalent. There are some criteria to determine Hadamard inequivalence.
Armario Sampalo, José Andrés
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On the existence of complex Hadamard submatrices of the Fourier matrices
Demonstratio Mathematica, 2019 We use a theorem of Lam and Leung to prove that a submatrix of a Fourier matrix cannot be Hadamard for particular cases when the dimension of the submatrix does not divide the dimension of the Fourier matrix.
Bond Bailey Madison +2 more
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search of hadamard matrices by turyn sequences
Revista de Matemática: Teoría y Aplicaciones, 2011 In this paper we study the Hadamard matrices and some algorithms to generate them. We review some theoretical aspects about Hadamard's conjecture, which asserts that every positive integer multiple of 4 is a Hadamard number.
Eduardo Piza Volio
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Multi-Delay Biorthogonal Coded/Balanced TR-UWB Receiver for WPAN Based on Hadamard Matrix [PDF]
Engineering and Technology Journal, 2009 Impulse radio ultra wideband (IR-UWB) communication is becoming an importanttechnology for future Wireless Personal Area Networks (WPANs). One of the criticalchallenges in IR-UWB system design is the inter-pulse interference (IPI).
Saleh M. Al-Qaraawy
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Journal of Inequalities and Applications, 2009 We are concerned with Kronecker and Hadamard convolution products and present some important connections between these two products. Further we establish some attractive inequalities for Hadamard convolution product.
Adem Kılıçman +1 more
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Generalization of Scarpis's theorem on Hadamard matrices
, 2016 A $\{1,-1\}$-matrix $H$ of order $m$ is a Hadamard matrix if $HH^T=mI_m$, where $T$ is the transposition operator and $I_m$ the identity matrix of order $m$. J. Hadamard published his paper on Hadamard matrices in 1893.
Djokovic, Dragomir Z.
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Zhejiang Daxue xuebao. Lixue ban, 2017 The Hadamard inequality and Fischer inequality play an important role in the matrix study. Many articles have addressed these inequalities providing new proofs, noteworthy extensions, generalizations, refinements, counterparts and applications.
ZHANGHuamin(张华民) +1 more
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