Liu, Bingwen; Huang, Lihong Existence and uniqueness of periodic solutions for a kind of first order neutral functional differential equations. (English) Zbl 1101.34054 J. Math. Anal. Appl. 322, No. 1, 121-132 (2006). Summary: We use the coincidence degree theory to establish new results on the existence and uniqueness of \(T\)-periodic solutions for the first-order neutral functional-differential equation \[ (x(t)+Bx(t-\delta))'=g_1(t,x(t))+g_2(t,x(t-\tau))+p(t). \] Cited in 13 Documents MSC: 34K13 Periodic solutions to functional-differential equations 34K40 Neutral functional-differential equations Keywords:first order; neutral; functional-differential equations; periodic solutions; coincidence degree PDF BibTeX XML Cite \textit{B. Liu} and \textit{L. Huang}, J. Math. Anal. Appl. 322, No. 1, 121--132 (2006; Zbl 1101.34054) Full Text: DOI References: [1] Burton, T. A., Stability and Periodic Solution of Ordinary and Functional Differential Equations (1985), Academic Press: Academic Press Orland, FL · Zbl 0635.34001 [2] Hardy, G. H.; Littlewood, J. E.; Polya, G., Inequalities (1964), Cambridge Univ. Press: Cambridge Univ. Press London · Zbl 0634.26008 [3] Gaines, R. E.; Mawhin, J., Coincide Degree and Nonlinear Differential Equations, Lecture Notes in Math., vol. 568 (1977), Springer · Zbl 0326.34021 [4] Hale, J. K., Theory of Functional Differential Equations (1977), Springer: Springer New York · Zbl 0425.34048 [5] Hale, J. K.; Mawhin, J., Coincide degree and periodic solutions of neutral equations, J. Differential Equations, 15, 295-307 (1975) · Zbl 0274.34070 [6] Komanovskii, V. B.; Nosov, V. R., Stability of Functional Differential Equations (1986), Academic Press: Academic Press London · Zbl 0593.34070 [7] Kuang, Y., Delay Differential Equations with Applications in Population Dynamical system (1993), Academic Press: Academic Press New York [8] Lu, S.; Ge, W., On existence of periodic solutions for neutral differential equation, Nonlinear Anal., 54, 1285-1306 (2003) · Zbl 1037.34064 [9] Lu, S.; Ge, W., Some new results on the existence of periodic solutions to a kind of Rayleigh equation with a deviating argument, Nonlinear Anal., 56, 501-514 (2004) · Zbl 1078.34048 [10] Zhang, M., Periodic solutions of linear and quasilinear neutral functional differential equations, J. Math. Anal. Appl., 189, 378-392 (1995) · Zbl 0821.34070 [11] Wang, G., Existence of periodic solutions for second order nonlinear neutral delay equations, Acta Math. Sinica, 47, 379-384 (2004), (in Chinese) · Zbl 1387.34100 This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. It attempts to reflect the references listed in the original paper as accurately as possible without claiming the completeness or perfect precision of the matching.