About author:LIU Xing-yuan(1963-), male, native of Shaoyang, Hunan, a professor of Shaoyang University,
engages in function differential equations.
Supported by:
Supported by the Natural Science Foundation of Hunan Province(12JJ6006); Supported by the Science Foundation of Department of Science and Technology of Hunan Province(2012FJ3107);
LIU Xing-yuan. Existence of Three Positive Periodic Solutions of Neutral Nonlinear Functional Difference Equations[J]. Chinese Quarterly Journal of Mathematics, 2015, 30(2): 172-183.