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math.AT2003
A generalization of the topological Brauer group
A. V. Ershov
In the present paper we study some homotopy invariants which can be defined by means of bundles with fiber a matrix algebra. We also introduce some generalization of the Brauer gro…
math.AT2001
Supplement 2 to the paper "Floating bundles and their applications"
A. V. Ershov
This paper is the supplement to the section 2 of the paper "Floating bundles and their applications" (math.AT/0102054). Below we study some properties of category, connected with c…