Solutions of Qualifying Exams I, 2013 Fall 1. (Algebra) Consider the algebra M2 (k) of 2 × 2 matrices over a field k. Recall that an idempotent in an algebra is an element e such that e2 = e. (a) Show that an idempotent

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Date: 2016-02-04 13:15:16		Solutions of Qualifying Exams I, 2013 Fall 1. (Algebra) Consider the algebra M2 (k) of 2 × 2 matrices over a field k. Recall that an idempotent in an algebra is an element e such that e2 = e. (a) Show that an idempotent Add to Reading List Source URL: www.math.harvard.edu Download Document from Source Website File Size: 254,67 KB Share Document on Facebook