Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN: 9781285463247
Author: David Poole
Publisher: Cengage Learning
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Transcribed Image Text:Exercise 14.6. Let R = C.1+C · i + C · j +C · k, where the addition and the multiplication laws
of R are extended from the Hamilton quaternion algebra, i.e. 1, i, j, k satisfy
1 · a = a = a· 1, Va € R, i2 = j2 = k2 = −1, ij = k = − ji.
Show that R is isomorphic to M2(C).
(Hint: consider the extension of the ring homomorphism from H into M2(C).)
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