Matrices, Irreps and the Great Orthogonality Theorem

  • Richard L. Liboff
Chapter
Part of the Undergraduate Texts in Contemporary Physics book series (UTCP)

Abstract

The character of a matrix (the “trace” in physics), which carries the symbol χ, is equal to the sum of the diagonals of the matrix. For the matrix A ij we write
$$\chi = \sum\limits_j {{A_{jj}}}$$
(3.1)

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Copyright information

© Springer-Verlag New York, Inc. 2004

Authors and Affiliations

  • Richard L. Liboff
    • 1
  1. 1.School of Electrical EngineeringCornell UniversityIthacaUSA

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