Nung-Sing Sze

Mappings preserving spectra of products of matrices

Jor-Ting Chan, Chi-Kwong Li, Nung-Sing Sze · Proceedings of the American Mathematical Society · 2006 · 61 citations · Full text

Spectral Theory, Representation Theory, Jordan Triple Product +6

Maps preserving the nilpotency of products of operators

Chi-Kwong Li, Peter Šemrl, Nung-Sing Sze · Linear Algebra and its Applications · 2007 · 60 citations

Nilpotent Group, Linear Operator, Universal Algebra +1

The automorphism group of separable states in quantum information theory

Shmuel Friedland, Chi-Kwong Li, Yiu‐Tung Poon et al. · Journal of Mathematical Physics · 2011 · 50 citations · Full text

Mappings on matrices: invariance of functional values of matrix products

Jor-Ting Chan, Chi-Kwong Li, Nung-Sing Sze · Journal of the Australian Mathematical Society · 2006 · 50 citations · Full text

Spectral Theory, Matrix Products, Linear Operator +10

Davis-Wielandt shells of operators

Chi-Kwong Li, Yiu‐Tung Poon, Nung-Sing Sze · Operators and Matrices · 2008 · 42 citations · Full text