Even-order differential equation with continuous delay: nonexistence criteria of Kneser solutions [PDF]
Advances in Difference Equations, 2021 AbstractIn this paper, we study even-order DEs where we deduce new conditions for nonexistence Kneser solutions for this type of DEs. Based on the nonexistence criteria of Kneser solutions, we establish the criteria for oscillation that take into account the effect of the delay argument, where to our knowledge all the previous results neglected the ...
Ali Muhib +2 more
openaire +3 more sources
Nonoscillatory solutions of the four-dimensional difference system
Electronic Journal of Qualitative Theory of Differential Equations, 2012 We study asymptotic properties of nonoscillatory solutions for a four-dimensional system \[\begin{aligned} \Delta x_{n}&= C_{n}\, y_{n}^{\frac{1}{\gamma}} \\ \Delta y_{n}&= B_{n}\, z_{n}^{\frac{1}{\beta}} \\ \Delta z_{n}&= A_{n}\, w_{n}^{\frac{1}{\alpha}}
Zuzana Dosla, J. Krejčová
doaj +1 more source
Kneser graphs are Hamiltonian [PDF]
, 2023 For integers~$k\geq 1$ and $n\geq 2k+1$, the Kneser graph~$K(n,k)$ has as vertices all $k$-element subsets of an $n$-element ground set, and an edge between any two disjoint sets.
Mutze, Torsten, Namrata,, Merino, Arturo
core +2 more sources
Invertible harmonic mappings, beyond Kneser [PDF]
, 2009 We prove necessary and sufficient criteria of invertibility for planarharmonic mappings which generalize a classical result of H. Kneser, also knownas the Rad ́o–Kneser–Choquet theorem.
ALESSANDRINI, GIOVANNI +3 more
core +1 more source
Attractors for Nonautonomous Parabolic Equations without Uniqueness
International Journal of Differential Equations, 2010 Using the theory of uniform global attractors of multivalued semiprocesses, we prove the existence of a uniform global attractor for a nonautonomous semilinear degenerate parabolic equation in which the conditions imposed on the nonlinearity provide the ...
Cung The Anh, Nguyen Dinh Binh
doaj +1 more source
On the Kneser-Type Solutions for Two-Dimensional Linear Differential Systems with Deviating Arguments [PDF]
Journal of Inequalities and Applications, 2007 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Roman Koplatadze, Alexander Domoshnitsky
openaire +4 more sources
The nonlinear Kneser problem for singular in phase variables second-order differential equations
Boundary Value Problems, 2014 For the singular in phase variables differential equation u″=f(t,u,u′), sufficient conditions are found for the existence of a solution satisfying the conditions φ(u)=c,u(t)>0,u′(t)0, where φ:C([
N. Partsvania, B. Puza
semanticscholar +2 more sources
On Kneser solutions of the $n$-th order nonlinear differential inclusions [PDF]
, 2019 summary:The paper deals with the existence of a Kneser solution of the $n$-th order nonlinear differential inclusion \begin {eqnarray} {x}^{(n)}(t)\in -A_{1}(t,x(t),\ldots ,x^{(n-1)}(t)){x}^{(n-1)}(t)-\ldots -A_{n}(t,x(t),\ldots ,&x^{(n-1)}(t))x(t ...
Pavlačková, Martina
core +1 more source
Kneser and Hereditarily Kneser Subgroups of a Profinite Group [PDF]
, 2004 2000 Mathematics Subject Classification: 20E18, 12G05, 12F10, 12F99.Given a profinite group Γ acting continuously on a discrete quasi-cyclic group A, certain classes of closed subgroups of Γ (radical, hereditarily radical, Kneser, almost Kneser, and ...
Basarab, Şerban
core +1 more source
On the behavior of Kneser solutions of nonlinear ordinary differential equations [PDF]
Annali di Matematica Pura ed Applicata (1923 -), 2015 We obtain priory estimates and sufficient conditions for Kneser solutions of ordinary differential equations to vanish in a neighborhood of ...
openaire +2 more sources