Bulletin of Pure & Applied Sciences- Mathematics and Statistics
  • Year: 2020
  • Volume: 39e
  • Issue: 2

On the characteristic roots and heart of a class of rhotrices over a finite field*

  • Author:
  • P.L. Sharma1, Arun Kumar2, Arun Kumar Sharma3
  • Total Page Count: 12
  • Published Online: Aug 30, 2021
  • Page Number: 277 to 288

1. Department of Mathematics and Statistics, Himachal Pradesh University, Shimla, India.

2. Department of Mathematics, Government Post Graduate College, Ghumarwin, Bilaspur, India.

3. Department of Computer Science and Engineering, National Institute of Technology, Hamirpur, Himachal Pradesh, India.

†Corresponding author P.L. Sharma, E-mail: plsharma1964@gmail.com

Abstract

Matrices play an important role in various branches of mathematics such as coding theory, combinatorics and cryptography. Rhotrices are represented by coupled matrices. The use of rhotrices in cryptography doubles the security of messages which travel over insecure channels. We consider rhotrices of 3-dimension and derive some properties related to their characteristic roots. Further, we take a special class of rhotrices of n-dimension and discuss its properties.

Keywords

Rhotrix, Finite field, Coupled matrix, Eigen values