A COMPUTATION PERSPECTIVE FOR THE EIGENVALUES OF CIRCULANT MATRICES INVOLVING GEOMETRIC PROGRESSION

Autor: SISWANDI SISWANDI, SUGI GURITMAN, NUR ALIATININGTYAS, TEDUH WULANDARI
Jazyk: English<br />Indonesian
Rok vydání: 2023
Předmět:
Zdroj: Jurnal Matematika UNAND, Vol 12, Iss 1, Pp 65-77 (2023)
Druh dokumentu: article
ISSN: 2303-291X
2721-9410
DOI: 10.25077/jmua.12.1.65-77.2023
Popis: In this article, the eigenvalues and inverse of circulant matrices with entries in the first row having the form of a geometric sequence are formulated explicitly in a simple form in one theorem. The method for deriving the formulation of the determinant and inverse is simply using elementary row or column operations. For the eigenvalues, the known formulation of the previous results is simplified by considering the specialty of the sequence and using cyclic group properties of unit circles in the complex plane. Then, the algorithm of eigenvalues formulation is constructed, and it shows as a better computation method.
Databáze: Directory of Open Access Journals