Results 11 to 20 of about 16,356,505 (288)
Even-Order Pascal Tensors Are Positive-Definite
MathematicsIn this paper, we show that even-order Pascal tensors are positive-definite, and odd-order Pascal tensors are strongly completely positive. The significance of these is that our induction proof method also holds for some other families of completely ...
Chunfeng Cui, Liqun Qi, Yannan Chen
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On the order of a group of even order
Journal of Algebra, 2007 Let \(G\) be a group of even order with a unique conjugacy class of involutions. In the paper under review the authors provide an upper bound for the order of \(G\) in terms of the centralizer \(H=C_G(t)\) of an involution \(t\) in \(G\). As an application the authors provide examples of sporadic simple groups, the groups \(Ly\) and \(Th\), whose ...
Harada, Koichiro, Miyamoto, Masahiko
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Oscillation Criteria for Qusilinear Even-Order Differential Equations
Mathematics, 2023 In this study, we extended and improved the oscillation criteria previously established for second-order differential equations to even-order differential equations. Some examples are given to demonstrate the significance of the results accomplished.
Mnaouer Kachout +4 more
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Even order self adjoint time scale problems [PDF]
Electronic Journal of Differential Equations, 2005 Even order self adjoint differential time scale expressions are introduced, together with associated self adjoint boundary conditions; the result is established by induction. Several fourth-order nabla-delta delta-nabla examples are given for select self
Douglas R. Anderson, Joan Hoffacker
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Cubic Extensions of Flag-Transitive Planes, I. Even Order [PDF]
International Journal of Mathematics and Mathematical Sciences, 2001 The collineation groups of even order translation planes which are cubic extensions of flag-transitive planes are determined.
Yutaka Hiramine +2 more
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Even-order optical harmonics generated from centrosymmetric-material metasurfaces
Physical Review ResearchGeneration of even-order optical harmonics requires noncentrosymmetric structures being conventionally observed in crystals lacking the center of inversion.
Pavel Tonkaev +6 more
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Williamson matrices of even order
, 1974 Recent advances in the construction of Hadamard matrices have depended on the existence of Baumert-Hall arrays and Williamson-type matrices. These latter are four (1,-1) matrices A,B,C,D, of order m, which pairwise satisfy (i) MNT = NMT, M,N e {A,B,C,D}, and (ii) AAT+BBT+CCT+DDT = 4mIm, where I is the identity matrix.
Jennifer Seberry (19583125)
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The linear dependence relations and truncation errors for interpolating even order splines [PDF]
, 1975 Linear dependence relations are derived for even order polynomial splines defined over the points midway between a uniformly spaced set of knots.
Meek, DS, Hoskins, WD
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Mathematics, 2021 In this study, new asymptotic properties of positive solutions of the even-order delay differential equation with the noncanonical operator are established.
Osama Moaaz, Clemente Cesarano
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Even-Order Neutral Delay Differential Equations with Noncanonical Operator: New Oscillation Criteria
Fractal and Fractional, 2022 The main objective of our paper is to investigate the oscillatory properties of solutions of differential equations of neutral type and in the noncanonical case. We follow an approach that simplifies and extends the related previous results.
Osama Moaaz +3 more
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