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| TYPES AND CRITERIA OF NONOSCILLATORY SOLUTIONS FOR SOME SECOND ORDER NFDE | |
| 作者姓名： | 阮炯 |
| 作者单位： | Fudan University |
| 摘 要： | In this paper we discuss the following NFDEr(t)x(t)-cx(t-τ)]′]′ integral from a to b p(t,ξ)xg(t,ξ)]dσ(ξ)=0where τ>0,1>c≥0,0≤g(t,ξ)≤t,r(t)>0,p(t,ξ)>0,and some sufficient and necessary conditionsare given,under which there are three types of nonoscillatory solutions for the above equation. |
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