1. Reflecting Brownian motion in three dimensions: a new proof of sufficient conditions for positive recurrence

   • J. G. Dai
   • J. M. Harrison

   OriginalPaper 17 January 2012 Pages: 135 - 147

2. Quantitative stability of mixed-integer two-stage quadratic stochastic programs

   • Zhiping Chen
   • Youpan Han

   Original Article 11 January 2012 Pages: 149 - 163

3. A new second-order corrector interior-point algorithm for semidefinite programming

   • Changhe Liu
   • Hongwei Liu

   Original Paper 20 January 2012 Pages: 165 - 183

4. Estimation of more than one parameters in stratified sampling with fixed budget

   • Rahul Varshney
   • Najmussehar
   • M. J. Ahsan

   Original Article 15 March 2012 Pages: 185 - 197

5. The nucleolus and the core-center of multi-sided Böhm-Bawerk assignment markets

   • Oriol Tejada
   • Marina Núñez

   Original Article 24 March 2012 Pages: 199 - 220