TY - JOUR AU - Kutbi, Marwan Amin AU - Roldán López de Hierro, Antonio Francisco AU - Sintunavarat, Wutiphol AU - Martínez-Moreno, Juan AU - Roldán López Del Hierro, Concepción Beatriz PY - 2013 SN - 1687-1812 UR - http://hdl.handle.net/10481/32374 AB - In this paper we present the notion of F-closed set (which is weaker than the concept of F-invariant set introduced in Samet and Vetro (Ann. Funct. Anal. 1:46-56, 2010), and we prove some coupled fixed point theorems without the condition of mixed... LA - eng PB - Springer KW - Partially ordered set KW - Fixed point KW - Contractive mapping KW - Mixed monotone property KW - F-invariant set TI - F-closed sets and coupled fixed point theorems without the mixed monotone property DO - 10.1186/1687-1812-2013-330 ER -