1 Department of Mathematics, Faculty of Applied Science, University of Sri Jayewardenepura, Gangodawilla, Nugegoda 10250. Sri Lanka.
2 Department of Mathematics and Philosophy of Engineering, Faculty of Engineering Technology, The Open University of Sri Lanka, Nawala, Nugegoda, 10250. Sri Lanka.
World Journal of Advanced Engineering Technology and Sciences, 2025, 16(03), 010–014
Article DOI: 10.30574/wjaets.2025.16.3.1319
Received on 25 July 2025; revised on 30 August; accepted on 02 September 2025
This paper investigates the exponential of a matrix and its inverse operation, the matrix logarithm. The matrix exponential plays a fundamental role in connecting Lie algebras with matrix Lie groups, while the logarithm provides a formal inverse in a suitable neighborhood of the identity matrix. We establish fundamental properties of these functions, construct a group structure based on generalized matrix powers, and demonstrate its isomorphism with the exponential matrix group. This research highlights the structural and algebraic significance of the exponential and logarithmic functions in the context of matrix theory.
Matrix exponential; Matrix logarithm; Exponential group; Matrix powers; Matrix groups.
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K. K. W. A. S. Kumara and G. Nandasena. Algebraic Structure of Matrix Powers of Matrix. World Journal of Advanced Engineering Technology and Sciences, 2025, 16(03), 010-014. Article DOI: https://doi.org/10.30574/wjaets.2025.16.3.1319.