Special Issue of SJOM 2008 
Words from the editors: SoonYi Wu and Nobuo Yamashita 
Satoru Fujishige and Shigueo Isotani
A submodular function minimization algorithm based on the minimumnorm base 
Yiran He and Jie Sun
A new constraint qualification and a secondorder necessary optimality condition for mathematical programming problems 
Wah June Leong and Malik Abu Hassan
Positivedefinite memoryless symmetric rank one method for largescale unconstrained optimization

Lu Li and KimChuan Toh
A polynomialtime inexact primaldual infeasible pathfollowing algorithm for convex quadratic SDP

Qun Lin, Ryan Loxton, Kok Lay Teo and Yong Hong Wu
A new computational method for a class of free terminal time optimal control problems 
J.Z. Liu, K.F.C. Yiu and K.L. Teo
Optimal Portfolios with stress analysis and the effect of a CVaR constraint 
XianJun Long and NanJing Huang
Lipschitz Bpreinvex functions and nonsmooth multiobjective programming 
JianWen Peng and JenChih Yao
An outer approximation method for generalized equilibrium problems, fixed point problems and variational inequality problems 
Yaxiang Yuan
A trust region algorithm for Nash equilibrium problems 
Regular Papers 
Jean Bosco Etoa Etoa
An enumeration sequential linear programming algorithm for bilevel programming with linear constraints 
B. Kheirfam
Multiparametric linear optimization: invariant active constraints set 
HsienChung Wu
Intervalvalued optimization problems based on different solution concepts 


