Apart from the long-known applications of variation principles in Physics, during and after the World War II, Optimization has become a major tool in making solutions and resource management in the military, engineering, management, finance, etc. Of course, the application value of Optimization is largely due to the fact that it is an autonomous mathematical discipline with a specific and well-developed methodology. As a mathematical area, Optimization creates a close relationship between strictly theoretical disciplines and those with narrow practical implications. The Bulgarian scientific school in this field has been known for their great achievements and traditions. Scientists of interests and contributions in the field will lecture the programme.