Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Yude Ji"'
Publikováno v:
Journal of Hebei University of Science and Technology, Vol 45, Iss 2, Pp 176-180 (2024)
In order to extend the basic theory of operator algebras, the conditions for a class of nonlinear mappings to become additive centralizers on nest algebras were studied. Firstly, the nest algebras related to a non-trivial nest based on a Hilbert spac
Externí odkaz:
https://doaj.org/article/b425a1eb310347f581938c2d8d2eec6f
Publikováno v:
Journal of Hebei University of Science and Technology, Vol 42, Iss 4, Pp 360-368 (2021)
In order to extend the basic theory of nonlinear discrete boundary value problems,this paper studied the sufficient conditions for the existence of positive solutions for a class of nonlinear second-order difference equations with three-point boundar
Externí odkaz:
https://doaj.org/article/c9cce54491b64a05baa9694ead6056b0
Publikováno v:
AIMS Mathematics, Vol 6, Iss 8, Pp 8667-8680 (2021)
The stability analysis strategy for continuous linear system with two additive time-varying delays is proposed in this paper. First, for the purpose of analysis, the novel Lyapunov-Krasovskii functional (LKF) consisting of integral terms based on the
Externí odkaz:
https://doaj.org/article/3d9526c37e08472c80b1a208cb6b79d2
Publikováno v:
Complexity, Vol 2021 (2021)
This article is related to the issue of fixed-time synchronization of different dimensional complex network systems with unknown parameters. Two suitable adaptive controllers and dynamic parameter estimations are proposed such that the complex networ
Externí odkaz:
https://doaj.org/article/f14e7b18bcb2432cbae5b3c145921de9
Publikováno v:
Electronic Journal of Differential Equations, Vol 2012, Iss 217,, Pp 1-18 (2012)
We consider the sixth-order $m$-point boundary-value problem $$displaylines{ u^{(6)}(t)=fig(u(t), u''(t), u^{(4)}(t)ig),quad tin(0,1),cr u(0)=0, quad u(1)=sum_{i=1}^{m-2}a_iu(eta_i),cr u''(0)=0, quad u''(1)=sum_{i=1}^{m-2}a_iu''(eta_i),cr u^{(4)}(0)=
Externí odkaz:
https://doaj.org/article/b256c1797dfd4b81a79e66e13d2b5786
Publikováno v:
Electronic Journal of Differential Equations, Vol 2011, Iss 83,, Pp 1-10 (2011)
Using the Leggett-Williams fixed point theorem in cones, we prove the existence of at least three positive solutions to the nonlinear $n$-th order $m$-point boundary-value problem $$displaylines{ Delta^{n}u(k)+a(k)f(k,u)=0, quad kin {0,N},cr u(0)=0,;
Externí odkaz:
https://doaj.org/article/db7b306e11f34767b5a67ca4c6ccf369
Publikováno v:
Abstract and Applied Analysis, Vol 2014 (2014)
We consider the fourth-order difference equation: Δ(z(k+1)Δ3u(k-1))=w(k)f(k,u(k)), k∈{1,2,…,n-1} subject to the boundary conditions: u(0)=u(n+2)=∑i=1n+1g(i)u(i), aΔ2u(0)-bz(2)Δ3u(0)=∑i=3n+1h(i)Δ2u(i-2), aΔ2u(n)-bz(n+1)Δ3u(n-1)=∑i=3n+
Externí odkaz:
https://doaj.org/article/6eca737b92314551aeddbe6d384da230
Publikováno v:
Discrete Dynamics in Nature and Society, Vol 2013 (2013)
This paper investigates the existence and nonexistence of positive solutions for a class of fourth-order nonlinear differential equation with integral boundary conditions. The associated Green's function for the fourth-order boundary value problems i
Externí odkaz:
https://doaj.org/article/5eadf72efcf94ebb84112549c950eaff
Publikováno v:
Advances in Difference Equations, Vol 2009 (2009)
By using the Leray-Schauder continuation theorem, we establish the existence of solutions for m-point boundary value problems on a half-line x″(t)+f(t,x(t),x′(t))=0, 0
Externí odkaz:
https://doaj.org/article/49270f9943f244fa868ac95b42055590
Autor:
Yanping Guo, Yude Ji
Publikováno v:
Boundary Value Problems, Vol 2009 (2009)
We consider the existence of countably many positive solutions for nonlinear nth-order three-point boundary value problem u(n)(t)+a(t)f(u(t))=0, t∈(0,1), u(0)=αu(η), u′(0)=⋯=u(n−2)(0)=0, u(1)=βu(η), where n≥2,α≥0,β≥0,0
Externí odkaz:
https://doaj.org/article/6f6451f66b6f40f080660857dcc79cb7