TY - JOUR T1 - Existence and approximation for nonlinear dynamic equations using monotone iteration method AU - Alsharif, Nour PY - 2025 DA - July Y2 - 2025 JF - Hitit Journal Of Science JO - HJS PB - Hitit University WT - DergiPark SN - 3061-9629 SP - 31 EP - 36 VL - 2 IS - 2 LA - en AB - This paper improves a generalized monotone iterative technique for solving dynamic initial value problems (IVPs) on time scales,using the method of coupled lower and upper solutions. We construct monotone sequences of iterates, each of which correspondsto a solution of the dynamic IVP on time scales. Under suitable conditions, we establish the uniform and monotonic convergence ofsequences to the extremal (minimal and maximal) solutions of the problem. The results provide a unified framework for analyzing dynamicequations on time scales via monotone iteration. KW - Comparison results KW - Monotone iterative technique KW - Coupled upper and lower solutions CR - Bhaskar TG, McRae FA. Monotone iterative techniques for nonlinear problems involving the difference of two monotone functions. Appl Math Comput. 2002; 133(1): 187-92. CR - Bohner M, Peterson A. Advances in dynamic equations on time scales. Boston, MA, Birkhäuser; 2003. CR - Denton Z, Vatsala AS. Monotone iterative technique for finite systems of nonlinear Riemann-Liouville fractional differential equations. Opuscula Math. 2011; 31(3): 327-39. CR - Kaymakçalan B. Existence and comparison results for dynamic systems on a time scale. J Math Anal Appl. 1993;172(1):243-55. CR - Kaymakçalan B. Monotone iterative method for dynamic systems on time scales. Dynam Systems Appl. 1993;2(2):213-20. CR - Ladde GS, Lakshmikantham V, Vatsala AS. Monotone iterative techniques for nonlinear differential equations. London: Pitman; 1985. CR - McRae FA. Monotone iterative technique and existence results for fractional differential equations. Nonlinear Anal. 2009;71(12):6093-6. CR - Ramírez JD, Vatsala AS. Generalized monotone iterative technique for Caputo fractional differential equation with periodic boundary condition via initial value problem. Int J Differ Equ. 2012;2012:1-17. CR - Wang WL, Tian JF. Generalized monotone iterative method for nonlinear boundary value problems with causal operators. Bound Value Probl. 2014;2014(1):192. CR - West IH, Vatsala AS. Generalized monotone iterative method for initial value problems. Appl Math Lett. 2004;17(11):1231-7. UR - https://dergipark.org.tr/en/pub/hjs/issue//1676518 L1 - https://dergipark.org.tr/en/download/article-file/4775182 ER -