Data envelopment analysis (DEA) is a mathematical programming - based technique to evaluate the performance of homogeneous group decision-making units (DMUs) with multiple inputs and outputs. One DEA applications involves aggregating input resources reallocating them create efficient DMUs.The present study employs centralized resource allocation (CRA) approach develop model for creating new DMU...

For each element X of codimension two of the intersection lattice of a hyperplane arrangement we define a differential logarithmic 1-forms tax with poles along the arrangement. Then we describe the class of arrangements for which forms wX generate the whole module of the logarithmic 1-forms with poles along the arrangement. The description is done in terms of linear relations among the function...