K. L. Dela Rosa and J. P. C. Santos, On commutators of unipotent matrices of index 2, Linear Algebra Appl. 710 (2025) 385-404.

R. J. L. de la Cruz, K. L. Dela Rosa, and A. V. Galimba, Fillmore's Theorem and Sums of Nilpotent Quaternion Matrices, Electron. J. Linear Algebra. 41 (2025), 266-276.

K. L. Dela Rosa, Zero-dilation indices and numerical ranges, Linear Algebra Appl. 726 (2025) 91-112.

K. L. Dela Rosa and H. J. Woerdeman, Completing an Operator Matrix and the Free Joint Numerical Radius, Complex Anal. Oper. Theory 16, 114 (2022).

K. L. Dela Rosa and H. J. Woerdeman, Location of Ritz values in the numerical range of normal matrices, Linear Multilinear Algebra. 69 (2021) 2749-2778.

K. L. Dela Rosa and H. J. Woerdeman, Continuity of submatrices and Ritz sets associated to a point in the numerical range, Linear Algebra Appl. 624 (2021) 1-13.

K. L. Dela Rosa, D. I. Merino, and A. T. Paras, The subspaces spanned by Householder vectors associated with an orthogonal or a symplectic matrix, Linear Algebra Appl. 546 (2018) 37-49.

R. J. L. de la Cruz and K. L. Dela Rosa, Each 2n-by-2n complex symplectic matrix is a product of n+1 commutators of J-symmetries, Linear Algebra Appl. 517 (2017) 53-62.

R. J. L. de la Cruz, K. L. Dela Rosa, D. I. Merino, and A. T. Paras, The Cartan-Dieudonné-Scherk theorems for complex S-orthogonal matrices, Linear Algebra Appl. 458 (2014) 251-260.

K. L. Dela Rosa, D. I. Merino, and A. T. Paras, The J-Householder matrices, Linear Algebra Appl. 436 (2012) 1189-1194.

K. L. Dela Rosa, Zero-dilation indices and numerical ranges

K. L. Dela Rosa and J. P. C. Santos, On commutators of unipotent matrices of index 2

K. L. Dela Rosa and H. J. Woerdeman, Location of Ritz values in the numerical range of normal matrices