On the Dual of the Lovász Theta Prime Number for the Disjunctive Product of Graphs

The Lovász theta function, and the variants of it given by Schrijver and Szegedy are upper bounds on the independence number of a graph. These functions play an important role in several optimization problems, such as the Cohn-Elkies bound for optimal sphere packing densities.<br/><br/>This thesis covers the properties of these functions. The...

Improving Rock Fragmentation at the Ahafo Gold Mine Site: Enhancing Improvements in Production Efficiency and Reducing Operational Costs Through Drill & Blast Pattern Optimization

An efficient production is essential for an economic continuation of most gold mining companies, due to a moderate gold price and a competitive market. Recently, the Ahafo South Mining operations owned by the Newmont Mining Corporation and located on a Proterozoic gold belt in the south west of Ghana, indicated that the cost of production must...