Results 31 to 40 of about 1,458,239 (269)

Local estimates for modified Riccati equation in theory of half-linear differential equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
In this paper we study the half-linear differential equation \begin{equation*} \bigl(r(t)\Phi_p(x')\bigr)'+c(t)\Phi_p(x)=0, \end{equation*} where $\Phi_p(x)=|x|^{p-2}x$, $p>1$. Using modified Riccati technique and suitable local estimates for terms
Simona Fišnarová, Robert Marik
doaj   +1 more source

Half-trek criterion for generic identifiability of linear structural equation models [PDF]

open access: yes, 2011
A linear structural equation model relates random variables of interest and corresponding Gaussian noise terms via a linear equation system. Each such model can be represented by a mixed graph in which directed edges encode the linear equations and ...
Draisma, Jan   +2 more
core   +3 more sources

Oscillation of third-order half-linear neutral difference equations [PDF]

open access: yesMathematica Bohemica, 2013
The authors give oscillation criteria for the nonlinear neutral difference equations of the third order, \[ \Delta \big ( a_n\,(\Delta ^2(x_n\pm b_nx_{n-\delta }))\big )^{\alpha }+q_n\,x_{n+1-\tau }^{\alpha }=0. \] These criteria present sufficient conditions for the oscillation of every (nontrivial) solution, or the limit of the solution as \(n\to ...
Thandapani, E., Selvarangam, S.
openaire   +1 more source

Summation inequalities and half-linear difference equations

open access: yesJournal of Mathematical Analysis and Applications, 2005
The solutions to the equation under consideration can be divided in some classes of various asymptotic behaviours. The belonging to them can be described by convergence or divergence of a given doubly series of coefficients. The obtained results are completing certain previous ones mentioned in references.
M. CECCHI   +3 more
openaire   +5 more sources

Asymptotic formulas for solutions of half-linear Euler-Weber equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2008
We establish improved asymptotic formulas for nonoscillatory solutions of the half-linear Euler-Weber type differential equation $$ (\Phi(x'))'+\left[\frac{\gamma_p}{t^p}+\frac{\mu_p}{t^p\log^2 t}\right]\Phi(x)=0, \quad \Phi(x):=|x|^{p-2}x,\quad p>1 ...
Zuzana Pátíková
doaj   +1 more source

Half-linear differential equations with oscillating coefficient

open access: yesDifferential and Integral Equations, 2005
n ...
M. CECCHI, Z. DOSLA, MARINI, MAURO
openaire   +3 more sources

Oscillation criteria for neutral half-linear differential equations without commutativity in deviating arguments

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We study the half-linear neutral differential equation \begin{equation*} \Bigl[r(t)\Phi(z'(t))\Bigr]'+c(t)\Phi(x(\sigma(t)))=0, \qquad z(t)=x(t)+b(t)x(\tau(t)), \end{equation*} where $\Phi(t)=|t|^{p-2}t$.
Simona Fišnarová
doaj   +1 more source

Uniqueness of radial solutions for the fractional Laplacian [PDF]

open access: yes, 2015
We prove general uniqueness results for radial solutions of linear and nonlinear equations involving the fractional Laplacian $(-\Delta)^s$ with $s \in (0,1)$ for any space dimensions $N \geq 1$.
Abdelouhab   +38 more
core   +2 more sources

Conjugacy and principal solution of generalized half-linear second order differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
We study the generalized half-linear second order differential equation and the associated Riccati type differential equation. We introduce the concepts of minimal and principal solutions of these equations and using these concepts we prove a new ...
Ondrej Dosly, J. Reznickova
doaj   +1 more source

Nuts and bolts of supersymmetry

open access: yes, 2020
A topological mechanism is a zero elastic-energy deformation of a mechanical structure that is robust against smooth changes in system parameters.
Chen, Bryan Gin-ge   +2 more
core   +1 more source

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