中国科学院数学与系统科学研究院期刊网
Existence and Uniqueness for the Fixed Points of φ Concave-(-ψ) Convex Mixed Monotone Operators and Its Applications
Shao Yuan XU(1), Chao Yi ZENG(
Acta Mathematica Sinica, Chinese Series . 2005, (6):  .  DOI: 10.12386/A2005sxxb0133