12-240/Classnotes for Tuesday November 6: Difference between revisions
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==Riddle== |
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Find A and B such that AB - BA = I |
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==Theorems== |
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1. Given U with basis <math>\alpha</math>, V with basis <math>\beta</math>, W with basis <math>\gamma,</math> |
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<math>[T \circ S]_\alpha^\beta = [T]_\beta^\gamma \times [S]_\alpha^\beta</math> |
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2. For A <math>\in M_(m \times n)</math> and B <math>\in M_(n \times p)</math> and C <math>\in M_(p \times q)</math>, |
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(AB)C = a(BC) |
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== Lecture notes scanned by [[User:Zetalda|Zetalda]] == |
== Lecture notes scanned by [[User:Zetalda|Zetalda]] == |
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Revision as of 17:39, 3 December 2012
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Riddle
Find A and B such that AB - BA = I
Theorems
1. Given U with basis , V with basis , W with basis
![{\displaystyle [T\circ S]_{\alpha }^{\beta }=[T]_{\beta }^{\gamma }\times [S]_{\alpha }^{\beta }}](https://wikimedia.org/api/rest_v1/media/math/render/svg/d5bf315fa44ef77e5e6ddb0e851aa0848632b0d6)
2. For A and B and C , (AB)C = a(BC)
Lecture notes scanned by Zetalda
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