At the LHC, it will be possible to investigate scenarios for physics beyond the Standard Model in detail. We present precise total and differential cross section predictions, based on Prospino2.0 and SMadGraph. We also show to what degree the structure of the weak–scale supersymmetric Lagrangean can be studied, based on LHC data alone or based on combined LHC and linear collider. Using Sfitter ...

Supply chain models describe the activities carried out in the process industry. They are used to design and operate complex sequences of tasks that transform raw materials and deliver final products to markets. Many optimization models have been developed for supply chain planning because they offer the possibility of finding strategies that lead to greater economic benefits. The traditional m...

In this work we study the Capacitated p-Center Problem (CpCP ) and we propose an exact algorithm to solve it. We study two auxiliary problems and their relation to CpCP , and we propose two different Lagrangean duals based on each of the auxiliary problems. The lower and upper bounds provided by each of the Lagrangean duals reduce notably the set of candidate radii and allow to solve the proble...

This paper presents two new mathematical formulations for the Point-Feature Cartographic Label Placement Problem (PFCLP ) and a new Lagrangean relaxation with clusters (LagClus) to provide bounds to these formulations. The PFCLP can be represented by a conflict graph and the relaxation divides the graph in small sub problems (clusters) that are easily solved. The edges connecting clusters are r...

Most existing methods for scheduling are based on centralized or hierarchical decision making using monolithic models. In this study, we investigate a new generation of scheduling methods based on a distributed and locally autonomous decision structure. Speciically, we propose a decision structure based on auction theory. The basic idea is to localize and distribute the functionality of schedul...

The governing equations for electromagneto-thermomechanical systems are well established and thoroughly derived in the literature, but have been limited to small deformations. This assumption provides an “ease” in the formulation: electromagnetic fields are governed in a Eulerian frame, whereby the thermomechanics is solved in a Lagrangean frame. It is possible to map the Eulerian frame to the ...

For a manifold $M$ endowed with Legendrean (or Lagrangean) contact structure $E\oplus F \subset TM$, we give an elementary construction of invariant partial connection on the quotient bundle $TM/F$. This permits us to develop naïve version relative tractor calculus and construct second order differential operator, which turns out be first BGG operator induced by connection.

The pure fixed charge transportation problem is reformulated into an equivalent set covering problem with, in general, a large number of constraints. Two constraint generation procedures for its solution are suggested; in both of these, new constraints are generated by the solution of ordinary maximum flow problems. In the first procedure, which is an optimizing Benders-type scheme, each set co...

We propose new techniques for the solution of the LP relaxation and the Lagrangean dual in combinatorial optimization problems. Our techniques find the optimal solution value and the optimal dual multipliers of the LP relaxation and the Lagrangean dual in polynomial time using as a subroutine either the Ellipsoid algorithm or the recent algorithm of Vaidya. Moreover, in problems of a certain st...