Existence and Iterative Approximations of Solutions for Certain Functional Equation and Inequality
Autor: | Zeqing Liu, Haijiang Dong, Sun Young Cho, Shin Min Kang |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Journal of Optimization Theory and Applications. 157:716-736 |
ISSN: | 1573-2878 0022-3239 |
DOI: | 10.1007/s10957-012-0185-4 |
Popis: | This paper deals with a functional equation and inequality arising in dynamic programming of multistage decision processes. Using several fixed-point theorems due to Krasnoselskii, Boyd–Wong and Liu, we prove the existence and/or uniqueness and iterative approximations of solutions, bounded solutions and bounded continuous solutions for the functional equation in two Banach spaces and a complete metric space, respectively. Utilizing the monotone iterative method, we establish the existence and iterative approximations of solutions and nonpositive solutions for the functional inequality in a complete metric space. Six examples which dwell upon the importance of our results are also included. |
Databáze: | OpenAIRE |
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