Some Relations Satisfied by the Prime Polynomial Matrices and Their Role in Linear Multivariable System Theory

Tech ReportA number of relations which are satisfied by prime polynomial matrices are derived and then used to study the polynomial matrix equation BG₁ + G₂A - V and to parametrically characterize the class of stabilizing output feedback compensators

Stability and stabilizability of switched linear systems: A survey of recent results

10.1109/TAC.2008.2012009IEEE Transactions on Automatic Control542308-322IETA

Asymptotic disturbance attenuation properties for uncertain switched linear systems

10.1016/j.nahs.2009.04.008Nonlinear Analysis: Hybrid Systems42279-29

Characterizing uniformly ultimately bounded switching signals for uncertain switched linear systems

10.1109/CDC.2007.4434430Proceedings of the IEEE Conference on Decision and Control6286-6291PCDC

Hybrid H∞ state feedback control for discrete-time switched linear systems

10.1109/ISIC.2007.445087022nd IEEE International Symposium on Intelligent Control, ISIC 2007. Part of IEEE Multi-conference on Systems and Control112-11

Grain as collateral

The provision of loans using warehoused grain as collateral, could give Ghanaian, Ethiopian and Zambian farmers more financial breathing space in the future. The Common Fund for Commodities (CFC) is supporting a new credit programme in the three countries. An important advantage is that the farmers can decide themselves when to sell the grain. Usually the crop is sold immediately after harvesting. However, prices are usually low then. Another benefit of the scheme is that there will be less seasonal variation. The CFC, an intergovernmental financial institution established by the UN, will only provide funds for technical assistance and capacity building. Overall, the programme will cost around two million $US. The loans have to be provided by local banks. The major task for the programme is to strengthen and create confidence in the storage sector according to Jonathan Coulter, agricultural economist of the National Resources Institute, who will coordinate the credit programme. He has previously worked for a similar scheme in Ghana. In that programme around 4,000 tons of cassava were stored, the harvest of some 1000 farmers. Two local banks provided the loans. Contact: Dr J.P. Coulter, Natural Resources Institute University of Greenwich Central Avenue Chatham Maritime Kent, ME4 4TB UK Fax: + 44 1634 880066 Email: [email protected] http://www.agricta.org/Spore/spore78 or Common Fund for Commodities PO Box 74656 1070 BR Amsterdam The Netherlands. Fax: + 31 20 6760231The provision of loans using warehoused grain as collateral, could give Ghanaian, Ethiopian and Zambian farmers more financial breathing space in the future. The Common Fund for Commodities (CFC) is supporting a new credit programme in the three..

Hybrid state feedback stabilization with l2 performance for discrete-time switched linear systems

10.1080/00207170701654354International Journal of Control8171114-1124IJCO

Switching stabilizability for continuous-time uncertain switched linear systems

10.1109/TAC.2007.894515IEEE Transactions on Automatic Control524633-646IETA