Yingli Yingli Yingli (), formally Yingli Green Energy Holding Company Limited ( - . Yingli Green Energy Holding Company Limited , known as "Yingli Solar," is one of the world's leading solar panel manufacturers. Yingli Green Energy's manufacturing covers the photovoltaic value chain from ingot casting and wafering through solar cell production and solar panel assembly. Yingli's photovoltaic module capacity is 4 GWs. Yingli is headquartered in Baoding, China and has more than 30 regional subsidiaries and branch offices and has distributed more than 15 GW solar panels to customers worldwide. Yingli Solar was established in 1997 and was the world’s
Radical of a module dual analogues for soc("M"). Radical of a module In mathematics, in the theory of modules, the radical of a module is a component in the theory of structure and classification. It is a generalization of the Jacobson radical for rings. In many ways, it is the dual notion to that of the socle soc("M") of "M". Let "R" be a ring and "M" a left "R"-module. A submodule "N" of "M" is called maximal or cosimple if the quotient "M"/"N" is a simple module. The radical of the module "M" is the intersection of all maximal submodules of "M", Equivalently,