WANG Xin, HE Ming-Ke. The Almost Periodic Solution of Two Order Neutral Differential Equation With Piecewise Constant Argument[J]. journal6, 2004, 25(1): 7-12.
[ 1] COOKE K L,WIENER J. Retarded Differential Equation With Piecewise Constant Delays[ J] . J.Math.Anal.Appl. ,1984, 99: 265- 297.
[ 2] SHAH S M,WIENER J. Advanced Differential Equations With Piecewise Constant Argument Deviations[ J] . Internat J.Math. Soc. ,1983, ( 6) : 671- 703.
[ 3] COOKE K L,WIENER J. A Survey of Differential EquationWith Piecewise Constant Argument[M] . Springer- Verlag , Berlin, 1991.
[ 4] YUAN R, HONG J. The Existence of Almost Periodic Solution for a Class of Differential Equations With Piecewise Constant Argument[ J] . Nonliear Analysis, TMA, 1997, 28( 8) : 1 439- 1 450.
[ 5] YUAN R,HONG J.Almost Periodic Solutions of Differential Equations With Piecewise Constant Argument[ J] . Analysis,1996, 16: 171- 180.
[ 6] YUAN R, HONG J. The Existence of Almost Periodic Solutions of Neutral Differential Equations With Piecewise Constant Argument[ J] . Sci. in China, 1996, 39( 11) : 1 164- 1 177.
[ 8] LI Zh-i x iang, HEMing-ke.The Existence of Almost Periodic Solution of Second Order Neutral Differential Equations With Piecewise Constant Argument[ J] . Northeast Math. J. , 1999, 15( 3) : 369- 378.
[ 9] FINK A M. Almost Periodic Differential Equations[M] . Springer- verlag, Berlin, 1974.
