What can be done to improve the undergraduate education of prospective high school mathematics teachers? The author discusses current problems, potential solutions, and some examples of successful efforts. (pp. 168)
Email this
If you know the eigenvalues of two Hermitian matrices, can you describe the possible eigenvalues of the sum matrix? The authors explain the role of combinatorial gadgets called honeycombs in a recent proof of the description conjectured by Alfred Horn in 1962. (pp. 175)
Email this