楊軍,劉帥,侯小康
(1.燕山大學(xué)理學(xué)院,河北秦皇島 066004;2.河北省數(shù)學(xué)研究中心,河北石家莊 050000)
時(shí)標(biāo)上帶強(qiáng)迫項(xiàng)高階中立型動力方程的振動性與非振動解的存在性
楊軍1,2,劉帥1,侯小康1
(1.燕山大學(xué)理學(xué)院,河北秦皇島 066004;2.河北省數(shù)學(xué)研究中心,河北石家莊 050000)
給出時(shí)標(biāo)上一類帶強(qiáng)迫項(xiàng)高階中立型動力方程一切解振動和非振動解存在的若干充分條件.所得結(jié)果推廣了一些已有的結(jié)論.
時(shí)標(biāo);動力方程;強(qiáng)迫項(xiàng);振動性;存在性
在微分、差分領(lǐng)域具有強(qiáng)迫項(xiàng)的方程已有一些研究成果[14],本文考慮時(shí)標(biāo)T上一類帶強(qiáng)迫項(xiàng)非線性高階中立型變時(shí)滯動力方程
[1]楊軍,關(guān)新平,劉樹堂.具強(qiáng)迫項(xiàng)高階非線性中立型差分方程的振動性與漸近性[J].純粹數(shù)學(xué)與應(yīng)用數(shù)學(xué), 1999,15(4):29-35.
[2]曹賢通,皮上超,俞元洪.帶強(qiáng)迫項(xiàng)高階中立型微分方程的振動性和非振動性[J].數(shù)學(xué)的實(shí)踐與認(rèn)識, 2007,37(18):201-204.
[3]Parhin,Ratn R N.Oscillation criteria for forced first order neutra1 differential equations with variable coefficients[J].J.Math.Anal.Appl.,2001,256(2):525-541.
[4]Zhang Q X,Yan J R.Oscillation behavior of even order neutral differential equations with variable coefficients[J].Appl.Math.Letters,2006,19(11):1202-1206.
[5]Bohner M,Peterson A.Dynamic Equations on Time Scales:An Introduction with Applications[M].Boston: Birkh¨auser,2001.
Oscillation and existence of nonoscillatory solutions of forced higher order neutral dynamic systems on time scales
YANG Jun1,2,LIU Shuai1,HOU Xiao-kang1
(1.College of Sciences,Yanshan University,Qinhuangdao066004,China;
2.Mathematics Research Center in Hebei Province,Shijiazhuang050000,China)
Sufficient conditions are obtained for oscillation and existence of nonoscillatory solutions of a class of forced higher order neutral dynamic systems on time scales.The criteria generalize some known results.
time scales,dynamic systems,forced,oscillation,existence
O175.15
A
1008-5513(2009)04-0665-06
2008-07-08.
國家自然科學(xué)基金(60604004),河北省自然科學(xué)基金數(shù)學(xué)研究專項(xiàng)資助項(xiàng)目(07M005).
楊軍(1964-),博士,教授,研究方向:微分方程理論及應(yīng)用.
2000MSC:34K11,34C11,39A11