2 papers
math.NA2026
Hermitian Quaternion Toeplitz Matrices by Quaternion-valued Generating Functions
Xue-lei Lin, Michael K. Ng, Junjun Pan
In this paper, we study Hermitian quaternion Toeplitz matrices generated by quaternion-valued functions. We show that such generating function must be the sum of a real-valued func…
cs.CV2025
Non-Negative Reduced Biquaternion Matrix Factorization with Applications in Color Face Recognition
Jifei Miao, Junjun Pan, Michael K. Ng
Reduced biquaternion (RB), as a four-dimensional algebra highly suitable for representing color pixels, has recently garnered significant attention from numerous scholars. In this…