Frontiers in Physics (Jul 2020)

A Relation Between Moore-Penrose Inverses of Hermitian Matrices and Its Application in Electrical Networks

  • Yujun Yang,
  • Dayong Wang,
  • Douglas J. Klein

DOI
https://doi.org/10.3389/fphy.2020.00239
Journal volume & issue
Vol. 8

Abstract

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A novel relation between the Moore-Penrose inverses of two nullity-1 n × n Hermitian matrices which share a common null eigenvector is established, and its application in electrical networks is illustrated by applying the result to Laplacian matrices of graphs.

Keywords