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Even-Order Pascal Tensors Are Positive-Definite

open access: yesMathematics
In 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
doaj   +3 more sources

Oscillatory Solutions to Neutral Delay Differential Equations

open access: yesMathematics, 2021
This article aims to mark out new conditions for oscillation of the even-order Emden–Fowler neutral delay differential equations with neutral term β1ıΦα[ζr−1ı]′+β3ıΦα[ςξı]=0.
Fahad Alsharari   +4 more
doaj   +1 more source

Oscillation of even order nonlinear dynamic equations on time-scales [PDF]

open access: yesMathematica Moravica, 2022
In this paper, the authors discuss the oscillatory behavior of solutions to a class of even order nonlinear dynamic equations on time scales. The results are established by a comparison with n-th order delay dynamic inequalities or first-order delay ...
Grace Said R., Abbas Syed, Graef John R.
doaj   +1 more source

Asymptotic Behavior of Solutions of Even-Order Differential Equations with Several Delays

open access: yesFractal and Fractional, 2022
The higher-order delay differential equations are used in the describing of many natural phenomena. This work investigates the asymptotic properties of the class of even-order differential equations with several delays.
Osama Moaaz, Wedad Albalawi
doaj   +1 more source

On the Oscillation of Solutions of Differential Equations with Neutral Term

open access: yesMathematics, 2021
In this work, new criteria for the oscillatory behavior of even-order delay differential equations with neutral term are established by comparison technique, Riccati transformation and integral averaging method.
Fatemah Mofarreh   +4 more
doaj   +1 more source

Oscillation criteria for even order neutral difference equations [PDF]

open access: yesOpuscula Mathematica, 2019
In this paper, we present some new sufficient conditions for oscillation of even order nonlinear neutral difference equation of the form \[\Delta^m(x_n+ax_{n-\tau_1}+bx_{n+\tau_2})+p_nx_{n-\sigma_1}^{\alpha}+q_nx_{n+\sigma_2}^{\beta}=0,\quad n\geq n_0 ...
S. Selvarangam   +3 more
doaj   +1 more source

Even order uniform hypergraph via the Einstein product

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
We propose the algebraic connectivity of an undirected 2m-uniform hypergraph under the Einstein product. We generalize the algebraic connectivity to a directed 2m-uniform hypergraph and reveal the relationship between the vertex connectivity and the ...
Jiaqi Gu, Yimin Wei
doaj   +1 more source

Oscillation Criteria for Qusilinear Even-Order Differential Equations

open access: yesMathematics, 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
doaj   +1 more source

On the oscillatory behavior of even order neutral delay dynamic equations on time-scales

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
We establish some new criteria for the oscillation of the even order neutral dynamic equation \begin{equation*} \left( a(t)\left( \left( x(t)-p(t)x(\tau (t))\right) ^{\Delta^{n-1}}\right) ^{\alpha }\right) ^{\Delta }+q(t)\left( x^{\sigma}(g(t))\right) ^{\
Said Grace   +3 more
doaj   +1 more source

Totally Critical Even Order Graphs

open access: yesJournal of Combinatorial Theory, Series B, 1999
A connected graph \(G\) is totally critical if its total chromatic number is at least two more than its maximum degree and is reduced by the removal of an arbitrary edge. Let \(G(p,q)\) have maximum degree \(\Delta(G)\); the deficiency of \(G\) is given by \(\text{def}(G)= \Delta(G)p- 2q\).
Hamilton, G.M.   +2 more
openaire   +2 more sources

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