2008 Société Générale trading loss the bank's total market capitalization. Bank officials claim that Kerviel tried to conceal the activity by creating losing trades intentionally so as to offset his early gains. According to the BBC, Kerviel generated €1.4 billion in hidden profits by the end of 2007. His employers say they uncovered unauthorized trading traced to Kerviel on January 19, 2008. The bank then closed out these positions over three days of trading beginning January 21, 2008, a period in which the market was experiencing a large drop in equity indices, and losses attributed are estimated at €4.9 billion. The bank claimed Kerviel "had
Classifying space for U(n) are in one-to-one correspondence with the homotopy classes of maps from "M" to CP. One also has the relation that that is, BU(1) is the infinite-dimensional projective unitary group. See that article for additional discussion and properties. For a torus "T", which is abstractly isomorphic to U(1) × ... × U(1), but need not have a chosen identification, one writes B"T". The topological K-theory "K"(B"T") is given by numerical polynomials; more details below. Let "F"(C) be the space of orthonormal families of "n" vectors in C and let "G"(C) be the Grassmannian of "n"-dimensional subvector spaces of C. The total