Optimality criteria without constraint qualifications for linear semidefinite problems O. I. KostyukovaT. V. Tchemisova OriginalPaper 30 March 2012 Pages: 126 - 143
Faces of faces of the acyclic Birkhoff polytope L. CostaE. A. Martins OriginalPaper 17 March 2012 Pages: 144 - 158
On induced matchings as star complements in regular graphs P. Rowlinson OriginalPaper 17 March 2012 Pages: 159 - 163
On least eigenvalues of bicyclic graphs with fixed number of pendant vertices Zhongzhu LiuBo Zhou OriginalPaper 17 March 2012 Pages: 175 - 192
Some further bounds for the Q-index of nested split graphs M. AnđelićC. M. da FonsecaD. V. Tošić OriginalPaper 17 March 2012 Pages: 193 - 199
The minimum weight t-composition of an integer D. M. CardosoJ. O. Cerdeira OriginalPaper 17 March 2012 Pages: 210 - 215
Approximating the maximum size of a k-regular induced subgraph by an upper bound on the co-k-plex number C. J. Luz OriginalPaper 17 March 2012 Pages: 216 - 226
On hereditary properties of the class of graphs with convex quadratic stability number D. M. CardosoV. V. Lozin OriginalPaper 17 March 2012 Pages: 227 - 232
Billiards, scattering by rough obstacles, and optimal mass transportation A. Plakhov OriginalPaper 17 March 2012 Pages: 233 - 245
A generalization of chromatic polynomial of a graph subdivision D. M. CardosoM. E. SilvaJ. Szymański OriginalPaper 17 March 2012 Pages: 246 - 254
