Results 31 to 40 of about 13,233,408 (362)

Stability and Boundedness of Solutions of Nonlinear Third Order Differential Equations with Bounded Delay

open access: yesJournal of Mathematical Sciences and Modelling, 2022
In this paper, we investigate the boundedness and uniformly asymptotically stability of the solutions to a certain third order non-autonomous differential equations with bounded delay.
Abdulhamit Özdemir, Erdal Korkmaz
doaj   +1 more source

The tensor t‐function: A definition for functions of third‐order tensors [PDF]

open access: yesNumerical Linear Algebra with Applications, 2018
A definition for functions of multidimensional arrays is presented. The definition is valid for third‐order tensors in the tensor t‐product formalism, which regards third‐order tensors as block circulant matrices.
Kathryn Lund
semanticscholar   +1 more source

Comparison of properties of solutions of differential equations and recurrence equations with the same characteristic equation (on example of third order linear equations with constant coefficients) [PDF]

open access: yesOpuscula Mathematica, 2006
Third order linear homogeneous differential and recurrence equations with constant coefficients are considered. We take the both equations with the same characteristic equation.
Jarosław Mikołajski, Ewa Schmeidel
doaj  

MOS-C Based Electronically Tuneable Current/Voltage-Mode Third Order Quadrature Oscillator and Biquadratic Filter Realization

open access: yesElektronika ir Elektrotechnika, 2021
This paper introduces a new electronically tuneable third order quadrature oscillator and biquadratic filter with MOS-C realization using all grounded passive components.
Hasan Cicekli, Ahmet Gokcen
doaj   +1 more source

Improved Hille Oscillation Criteria for Nonlinear Functional Dynamic Equations of Third-Order

open access: yesMathematics, 2022
This paper aims to improve Hille oscillation criteria for the third-order functional dynamic equation p2(ξ)ϕγ2p1ξϕγ1yΔ(ξ)ΔΔ+a(ξ)ϕγy(g(ξ))=0, on an above-unbounded time scale T. The obtained results improve related contributions reported in the literature
Taher S. Hassan   +5 more
doaj   +1 more source

Third order matching is decidable

open access: yesAnnals of Pure and Applied Logic, 1994
The higher order matching problem is the problem of determining whether a term is an instance of another in the simply typed $λ$-calculus, i.e. to solve the equation a = b where a and b are simply typed $λ$-terms and b is ground. The decidability of this problem is still open.
openaire   +5 more sources

On a surface of the third order [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1891
In the second part of Professor Chrystal's Algebra (Exer. V., No. 4) the following exercise is given:-If 2xyz-x2-y2-z2+1=0, and x,y,z are all real, then all, or none, of the quantities x,y,z lie between-1 and + 1.
openaire   +2 more sources

A THIRD ORDER CORRECTION TO THE HELMHOLTZ EQUATION [PDF]

open access: yesMathematical Modelling and Analysis, 2005
In this work we derive a third order correction to the classical Helmholtz equation. Starting from non-linear Euler equations and using asymptotical analysis we get a decoupled system of linear, Helmholtz type equations, which are written in terms of the acoustical pressure functions.
Jegorovs, J., Mohring, J.
openaire   +5 more sources

Oscillation criteria for third-order functional half-linear dynamic equations

open access: yesAdvances in Difference Equations, 2017
In this paper, we study the third-order functional dynamic equation { r 2 ( t ) ϕ α 2 ( [ r 1 ( t ) ϕ α 1 ( x Δ ( t ) ) ] Δ ) } Δ + q ( t ) ϕ α ( x ( g ( t ) ) ) = 0 , $$ \bigl\{ r_{2}(t)\phi_{\alpha_{2}} \bigl( \bigl[ r_{1}(t) \phi _{\alpha _{1}} \bigl(
Taher S Hassan   +2 more
doaj   +1 more source

Informative Order-Reduction of Underdamped Third-Order Systems

open access: yesIEEE Access, 2021
Model order reduction simplifies the understanding of a given system and minimizes the simulation studies computational burden. A new order reduction method that depends on a predetermined normalized error of the transient performance indices is ...
Saher Albatran   +2 more
doaj   +1 more source

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