Combinatorial Optimization

Structure Theorems for Optimum Hyperpaths in Directed Hypergraphs.- Branch-and-Price Guided.- The New Faces of Combinatorial Optimization.- Models and Algorithms for the Train Unit Assignment Problem.- The Minimum Stabbing Triangulation Problem: IP Models and Computational Evaluation.- Using Symmetry to Optimize over the Sherali-Adams Relaxation.- A Second-Order Cone Programming Approximation to Joint Chance-Constrained Linear Programs.- Semidefinite Relaxations for Mixed 0-1 Second-Order Cone Program.- The Non-Disjoint m- Ring-Star Problem : Polyhedral Results and SDH/SONET Network Design.-The Uncapacitated Asymmetric Traveling Salesman Problem with Multiple Stacks.- Polyhedral Analysis and Branch-and-Cut for the Structural Analysis Problem.- Extended Formulations, Nonnegative Factorizations, and Randomized Communication Protocols.- An Algebraic Approach to Symmetric Extended Formulations.- Dual Consistent Systems of Linear Inequalities and Cardinality Constrained Polytopes.- Minimum Ratio Cover of Matrix Columns by Extreme Rays of Its Induced Cone.-The Uncapacitated Asymmetric Traveling Salesman Problem with Multiple Stacks.- Polyhedral Analysis and Branch-and-Cut for the Structural Analysis Problem.- Extended Formulations, Nonnegative Factorizations, and Randomized Communication.- An Algebraic Approach to Symmetric Extended.-On the Hop Constrained Steiner Tree Problem with Multiple Root.-Structure Theorems for Optimum Hyperpaths in Directed Hypergraphs.- A Second-Order Cone Programming Approximation to Joint Chance-Constrained Linear Programs.-Extended Formulations, Nonnegative Factorizations, and Randomized Communication.- An Algebraic Approach to Symmetric Extended.-Gap Inequalities for the Max-Cut Problem: A Cutting-Plane Algorithm.