[1] Agarwal R P, El-Gebeily M A, O´Regan D. Generalized contractions in partially ordered metric spaces. Appl Anal, 2008, 87: 1–8
[2] Aydi H. Coincidence and common fixed point results for contraction type maps in partially ordered metric spaces. Int J Math Anal, 2011, 5: 631–642
[3] Aydi H, Samet B, Vetro C. Coupled fixed point results in cone metric spaces for ˜ w-compatible mappings. Fixed Point Theory Appl, 2011, 2011: 27
[4] Aydi H, Damjanovi´c B, Samet B, Shatanawi W. Coupled fixed point theorems for nonlinear contractions in partially ordered G-metric spaces. Math Comput Modelling, 2011, 54: 2443–2450
[5] Bhaskar T G, Lakshmikantham V. Fixed point theory in partially ordered metric spaces and applications. Nonlinear Anal, 2006, 65: 1379–1393
[6] Berinde V, Borcut M. Tripled fixed point theorems for contractive type mappings in partially ordered metric spaces. Nonlinear Anal, 2011, 74: 4889–4897
[7] Karapmar E. Couple Fixed Point on Cone Metric Spaces. Gazi University Journal of Science, 2011, 24: 51–58
[8] Karapmar E. Coupled fixed point theorems for nonlinear contractions in cone metric spaces. Comput Math Appl, 2010, 59: 3656–3668
[9] Lakshmikantham V, ´Ciri´c Lj B. Coupled fixed point theorems for nonlinear contractions in partially ordered metric spaces. Nonlinear Anal, 2009, 70: 4341–4349
[10] Luong N V, Thuan N X. Coupled fixed points in partially ordered metric spaces and application. Nonlinear Anal, 2011, 74: 983–992
[11] Nashine H K, Samet B. Fixed point results for mappings satisfying (Ψ ,φ ')-weakly contractive condition in partially ordered metric spaces. Nonlinear Anal, 2011, 74: 2201–2209
[12] Nieto J J, Lopez R R. Contractive mapping theorems in partially ordered sets and applications to ordinary differential equations. Order, 2005, 22: 223–239
[13] Presi´c S B. Sur une classe d´inéquations aux diff´erences finites et sur la convergence de certaines suites. Publ Inst Math (Beograd) (NS), 1965, 5: 75–78
[14] Ran A C M, Reurings M C B. A fixed point theorem in partially ordered sets and some application to matrix equations. Proc Amer Math Soc, 2004, 132: 1435–1443
[15] Samet B. Coupled fixed point theorems for a generalized Meir-Keeler contraction in partially ordered metric spaces. Nonlinear Anal, 2010, 74: 4508–4517
[16] Samet B, Vetro C. Coupled fixed point, f-invariant set and fixed point of N-order. Ann Funct Anal, 2010, 1: 46–56
[17] Suzuki T. Meir-Keeler Contractions of Integral Type Are Still Meir-Keeler Contractions. Int J Math Math Sci, 2007, 2007: Article ID 39281 |