This is a preview. Log in through your library . Abstract In 1955 Dye proved that two von Neumann factors not of type I2n are isomorphic if and only if their unitary groups are isomorphic as abstract ...
Consider the natural action of the general linear group GL(· V) on the product of four Grassmann varieties of the vector space V. In General linear group action on four Grassmannians we gave an ...
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