A short proof of Minc's conjecture

AbstractA short proof is given of the following conjecture of Minc, proved in 1973 by Brègman. Let A be a n × n − (0, 1)-matrix with ri ones in row i. Then per A ⩽ πi=1nri!1ri

Some remarks on the permanents of circulant (0,1) matrices

Some permanents of circulant (0,1) matrices are computed. Three methods are used. First, the permanent of a Kronecker product is computed by directly counting diagonals. Secondly, Lagrange expansion is used to calculate a recurrence for a family of sparse circulants. Finally, a complement expansion method is used to calculate a recurrence for a permanent of a circulant with few zero entries. Also, a bound on the number of different permanents of circulant matrices with a given row sum is obtained

The optimal country's policy to attract an MNC new production plant

EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Strategic development of renewable energy technology in Europe

This thesis addresses the development of industries manufacturing in the renewable energy sector. As the most mature of the renewable energy technologies, it specifically assesses the development of the wind turbine manufacturing industry up to the present in order to address what lessons may be learned for the future development of the industry and for other renewable energy industries. Data is presented in the form of a number of case studies which detail the comparative successes of Denmark, Germany, Spain and the UK in encouraging the growth of wind turbine industries. Three areas of study are identified, and the data collected in the case studies applied to each. Firstly, the question of whether it is still possible for countries to stimulate national industries to successfully gain entry to the wind turbine manufacturing industry. Applying the historical data in the context of a typological theory on entrepreneurial success with regard to industrial phase, it is argued that such entry is still possible. The remaining two areas of study are linked in that they both address what lessons might be learned from the international development of the wind turbine manufacturing industry in order for the UK to replicate the success of other nations. The first of these areas specifically addresses how lessons from elsewhere might enable UK access to the wind turbine manufacturing industry. The second area addresses the extent to which experiences in the wind turbine industry might provide lessons for entrants to the industries of newer, less mature renewable energy technologies