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Proceedings of the American Mathematical Society
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Isometries for Ky Fan norms between matrix spaces

Author(s): Chi-Kwong Li; Yiu-Tung Poon; Nung-Sing Sze
Journal: Proc. Amer. Math. Soc. 133 (2005), 369-377.
MSC (2000): Primary 15A04, 15A60
Posted: August 26, 2004
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Abstract | References | Similar articles | Additional information

Abstract: We characterize linear maps between different rectangular matrix spaces preserving Ky Fan norms.


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C. K. Li, P. Semrl, and A. R. Sourour, Isometries for Ky-Fan norms on block triangular matrix algebras, Archiv Math. 81 (2003), 175-181.


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Additional Information:

Chi-Kwong Li
Affiliation: Department of Mathematics, College of William and Mary, P.O. Box 8795, Williamsburg, Virginia 23187-8795
Email: ckli@math.wm.edu

Yiu-Tung Poon
Affiliation: Department of Mathematics, Iowa State University, Ames, Iowa 50011 -- and -- Department of Mathematics, HKIEd, Hong Kong
Email: ytpoon@ied.edu.hk

Nung-Sing Sze
Affiliation: Department of Mathematics, The University of Hong Kong, Hong Kong
Email: math2000@graduate.hku.hk

DOI: 10.1090/S0002-9939-04-07510-0
PII: S 0002-9939(04)07510-0
Keywords: Isometry, matrices, linear maps
Received by editor(s): July 8, 2003
Received by editor(s) in revised form: August 26, 2003
Posted: August 26, 2004
Additional Notes: The first author's research was partially supported by NSF
The third author thanks Dr. Jor-Ting Chan for his guidance and encouragement
Communicated by: Joseph A. Ball
Copyright of article: Copyright 2004, American Mathematical Society


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