
Special Issue in Memory of Professor Siegfried Schaible




Siegfried Schaible (19402014): Nicolas Hadjisavvas

Open 
Wataru Takahashi
The split common fixed point problem by hybrid methods
for two infinite families of nonlinear mappings in Hilbert spaces

Open 
X. B. Li, X. L. Qin, S. Rezapour, J. C. Yao and S. H. Zakeri
Hybrid approximate proximal method for vector optimization problems

Open 
Liguo Jiao, HyunMin Kim, Jie Meng and Do Sang Kim
Representation of the normal cone and its applications in robust minimax programming problems

Open 
C. Gutiérrez
Optimality conditions for weak solutions of vector optimization problems through quasi interiors and improvement sets

Open 
Riccardo Cambini and Laura Carosi
Characterizing the generalized convexity of a quadratic fractional function

Open 
Ali Reza Doagooei, Thanh Tam Le and Christiane Tammer
Convexity in the framework of variable domination structures and applications in optimization


A. E. AlMazrooei, A. Latif and X. Qin
Approximation of solutions of split equilibrium problems with monotone and strictly psedocontractive operators


Yonghong Yao, Xiaowei Qin and YeongCheng Liou
Constructive approximation of solutions to fixed point and quasivariational inclusion problems

Open 
Nguyen Thi Thu Huong, Nguyen Ngoc Luan, Nguyen Dong Yen and Xiaopeng Zhao
The Borwein proper efficiency in linear fractional vector optimization

Open 
Nguyen Van Hung, Elisabeth Köbis and Vo Minh Tam
Existence conditions for setvalued vector quasiequilibrium problems on Hadamard manifolds with variable domination structure and applications


Jun Zhang, MingCheng Tsai and NgaiChing Wong
Norm of positive sum preservers of smooth Banach lattices and L^{p}(μ) spacess


Yonghong Yao, Mihai Postolache and JenChih Yao
Convergence of an extragradient algorithm for fixed point and variational inequality problems


Jinlu Li and Christiane Tammer
On nonlinear split ordered equilibrium problems


Christian Günther and Nicolae Popovici
Characterizations of explicitly quasiconvex vector functions
w.r.t. polyhedral cones


Jiangxing Zhu, Chunhai Hu, Wei Ouyang and Xiaopeng Zhao
Uniform growth condition with respect to an admissible function














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