INVESTIGADORES
GIRIBET Juan Ignacio
artículos
Título:
Shorting Selfadjoint operators in Hilbert Spaces
Autor/es:
J. I. GIRIBET; A. MAESTRIPIERI; F. MARTÍNEZ PERÍA
Revista:
LINEAR ALGEBRA AND ITS APPLICATIONS
Editorial:
Elsevier
Referencias:
Año: 2008 vol. 428 p. 1899 - 1911
ISSN:
0024-3795
Resumen:
Given a closed subspace $St$ of a Hilbert space $HH$ and a (bounded) selfadjoint operator $B$ acting on $HH$, a min-max representation of the shorted operator (or Schur complement) of $B$ to $St$ is obtained under compatibility hypotheses. Also, an extension of Pekarev´s formula is given.
