caa a22 4500 605525447 CHVBK 20210128100758.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10958-015-2464-8 doi (NATIONALLICENCE)springer-10.1007/s10958-015-2464-8 Periodic Solutions of the Second-Order Neutral Functional Differential Systems with Operator Varying in Time and Delays [Elektronische Daten] [Zhengxin Wang, Jinde Cao, Shiping Lu] We study the existence of periodic solutions for second-order neutral functional differential systems with operator varying in time and delays. An interesting issue is that the coefficient matrix of the neutral difference operator is not a constant matrix, which contradicts the available literature data. Some properties of the neutral difference operator variable as a function of time and the results on the existence of periodic solutions of the second-order neutral functional differential systems are obtained. Moreover, numerical simulations are performed to illustrate the theoretical results. Springer Science+Business Media New York, 2015 Wang Zhengxin College Sci, Nanjing Univ. Posts and Telecommunications, 210003, Nanjing, China aut Cao Jinde Research Center for Complex Systems and Network Sci. and Southeast Univ, 210096, Nanjing, China aut Lu Shiping College Math. and Statistics, Nanjing Univ. Information Sci. and Technology, 210044, Nanjing, China aut Journal of Mathematical Sciences Springer US; http://www.springer-ny.com 208/5(2015-08-01), 498-519 1072-3374 208:5<498 2015 208 10958 https://doi.org/10.1007/s10958-015-2464-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10958-015-2464-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Zhengxin College Sci, Nanjing Univ. Posts and Telecommunications, 210003, Nanjing, China aut NATIONALLICENCE 700 1- Cao Jinde Research Center for Complex Systems and Network Sci. and Southeast Univ, 210096, Nanjing, China aut NATIONALLICENCE 700 1- Lu Shiping College Math. and Statistics, Nanjing Univ. Information Sci. and Technology, 210044, Nanjing, China aut NATIONALLICENCE 773 0- Journal of Mathematical Sciences Springer US; http://www.springer-ny.com 208/5(2015-08-01), 498-519 1072-3374 208:5<498 2015 208 10958