Harm Derksen and Jerzy Weyman
A quiver is a directed graph, and a representation of a quiver is a collection of finite dimensional vector spaces, one for each graph vertex, and linear transformations, one for each directed edge. Representations of a given quiver form a category, which, as the authors discuss, can be surprisingly rigid and rich.
(pp. 200)
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Patricia Clark Kenschaft
The author argues that societal imperatives, particularly in minority education, necessitate improving the mathematical competence of elementary school teachers, and she shares her own experiences in so doing.
(pp. 208)
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