重庆工商大学学报:自然科学版
重慶工商大學學報:自然科學版
중경공상대학학보:자연과학판
Journal of Chongqing Technology and Business University:Natural Science Edition
2011年
6期
558-563
,共6页
三阶时滞泛函微分方程%周期解%重合度
三階時滯汎函微分方程%週期解%重閤度
삼계시체범함미분방정%주기해%중합도
three order functional differential equation with delays%periodic solution%coincidence degree
利用重合度理论,研究一类具有偏差变元的三阶时滞泛函微分方程x′″(t)+∑2i=[aix(1)+bix(i)(t-τi)]+cx(t)+g1(x(t))+g2(x(t-τ(t)))=e(t)的T-周期解问题,获得了上述方程弘周期解存在和唯一性的若干新结果.
利用重閤度理論,研究一類具有偏差變元的三階時滯汎函微分方程x′″(t)+∑2i=[aix(1)+bix(i)(t-τi)]+cx(t)+g1(x(t))+g2(x(t-τ(t)))=e(t)的T-週期解問題,穫得瞭上述方程弘週期解存在和唯一性的若榦新結果.
이용중합도이론,연구일류구유편차변원적삼계시체범함미분방정x′″(t)+∑2i=[aix(1)+bix(i)(t-τi)]+cx(t)+g1(x(t))+g2(x(t-τ(t)))=e(t)적T-주기해문제,획득료상술방정홍주기해존재화유일성적약간신결과.
In this paper, by means of the theory of coincident degree, T-periodic solution of a type of third order functional differential equation with delays x′″(t)+∑2i=[aix(1)+bix(i)(t-τi)]+cx(t)+g1(x(t))+g2(x(t-τ(t)))=e(t) is studied. Several new results about the existance and uniqueness of T-periodic solution of above equation are obtained.