Changlong Yu

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In this paper, by using the fixed point index method, we establish the existence of at least one or at least two positive solutions to m-point boundary value problem for the second order differential equation with an advanced argument {u"(t)+a(t)f(u(h(t)))=0, t isin (0,1), u(0)=0, Sigma<sub>i=1</sub> <sup>m-2</sup> k<sub>i</sub>u(xi<sub>i</sub>)=u(1), where(More)
The purpose of this study was to investigate the influence of body function, activities and pain on the level of activity in adults with Kashin Beck Disease (KBD). Seventy-five KBD patients with a mean age of 54.8 years (SD 11.3) participated. Anthropometrics, range of joint motion (ROM) and muscle strength were measured as well as the time-up-and-go test(More)
In this paper, we study the nonlinear second-order impulsive q k-difference equations with Sturm-Liouville type, in which nonlinear team and impulsive teams are dependent on first-order q k-derivatives. We obtain the existence and uniqueness results of solutions for the problem by Banach's contraction mapping principle and Schaefer's fixed point theorems.(More)
In this paper, by Leggett-William fixed point theorem, we establish the existence of triple positive solutions of a new kind of integral boundary value problem for the nonlinear singular differential equations with p-Laplacian operator, in which q(t) can be singular at t = 0, 1. We also show that the results obtained can be applied to study certain higher(More)
Copyright © 2013 Jufang Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. ABSTRACT This paper considers the problem of robust passive control for uncertain discrete systems with(More)
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