Authors: Teo Banica
The unitary group U_N has a free analogue U_N^+, and the study of the closed subgroups G\subset U_N^+ is a problem of general interest. We review here the general theory of U_N^+ and its subgroups, with all the needed preliminaries included. We discuss as well a number of more advanced topics, selected for their beauty, and potential importance.
Comments: 200 Pages.
[v1] 2019-09-17 19:20:58
Unique-IP document downloads: 16 times
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