LI W N, HAN M A, MENG F W. H-oscillation of solutions of certain vector hyperbolic differential equations with deviating arguments[J]. Appl Math Comput, 2004, 156(3): 637-653.
[2]
LI W N, HAN M A. Oscillation of solutions for certain impulsive vector parabolic differential equations with delays[J]. J Math Anal Appl, 2007, 326(1): 363-371.
[3]
DOMSLAK JU I. On the oscillation of solutions of vector differential equations[J].Soviet Math Dokl, 1970,11: 839-841.
[4]
COURANT R, HILBERT D. Methods of Mathematical Physics[M]. New York: Interscience, 1996.
[5]
MINCHEV E, YOSHIDA N. Oscillation of solutions of vector differential equations of parabolic type with functional arguments[J]. J Comput Appl Math, 2003, 151(1): 107-117.
LUO L P, YU Y H. H-oscillation of vector parabolic equations with continuous deviating arguments[J]. Journal of Zhejiang University: Science Edition, 2009, 36(2): 137-139.
LUO L P, YU Y H. H-oscillation of impulsive vector neutral parabolic partial differential equations[J]. ACTA MATHEMATICA SINICA, Chinese Series, 2010, 53(2): 257-262.
[10]
GILBARG D,TRUDINGER N S. Elliptic Partial Equations of Second Order [M]. Berlin: Springer-Verlag, 1977.