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Projections in real inner product spaces

Exposition of the theory of (not necessarily orthogonal) projections. Discusses orthogonal complements, adjoints, and matrix representations. Mentions generalization to complex vector spaces.

Identifier: 
http://www.math.wayne.edu/~drucker/MAALinAlgResources/projections2.pdf
Rating: 
Average: 3.5 (2 votes)
Creator(s): 
Daniel Drucker
Cataloger: 
Steven Leon
Publisher: 
Wayne State University website
Rights: 
Daniel Drucker

Comments

Anonymous's picture

The paper consists of ten theorems which provide a nice coverage of the topic, projections in inner product spaces. It covers both orthogonal and nonorthogonal projections. I am not sure, however, how useful this material would be in a first course in linear algebra. Ten theorems is a lot to throw at the students, particularly in a course where the majority of students are likely to be majoring in fields other than mathematics. Still the material is nicely presented and could be useful for a second course in linear algebra that is designed for math majors.

Anonymous's picture

A thorough developement of projection matrices. 

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