Papers accepted for publications

1. (with C. K. Li and N. S. Sze)  Condition for the higher rank numerical range to be non-empty, Linear Algebra and Multilinear Algebra, 4 pages.  pdf

2. (with C. K. Li and N. S. Sze)  Eigenvalues of the sum of matrices  from  unitary similarity orbits,  SIAMAX, 20 pages.  pdf

3. (with C. K. Li)  Sum of Hermitian Matrices with Given Eigenvalues: Inertia, Rank, and Multiple Eigenvalues, Canadian J. Math.,  23 pages.  pdf

38.     4. (with C. K. Li)  Davis-Wielandt Shells of normal operators, Acta Sci. Math. (Szeged),  6 pages.  pdf

39.     5. (with C. K. Li and N. S. Sze)  Davis-Wielandt Shells of  operators, Operator and Matrices, 17 pages.  pdf

40.     6. (with C.K. Li) Spectrum, Numerical Range and Davis-Wielandt Shell of a Normal Operator, Glasgow Math. J. ,  13 pages. pdf

41.   

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