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Algebraic Properties of Parikh Matrices of Binary Picture Arrays

Author

Listed:
  • Somnath Bera
  • Sastha Sriram
  • Atulya K. Nagar
  • Linqiang Pan
  • K. G. Subramanian
  • Ali Jaballah

Abstract

A word is a finite sequence of symbols. Parikh matrix of a word is an upper triangular matrix with ones in the main diagonal and nonnegative integers above the main diagonal which are counts of certain scattered subwords in the word. On the other hand, a picture array, which is a rectangular arrangement of symbols, is an extension of the notion of a word to two dimensions. Parikh matrices associated with a picture array have been introduced, and their properties have been studied. Here, we obtain certain algebraic properties of Parikh matrices of binary picture arrays based on the notions of power, fairness, and a restricted shuffle operator extending the corresponding notions studied in the case of words. We also obtain properties of Parikh matrices of arrays formed by certain geometric operations.

Suggested Citation

  • Somnath Bera & Sastha Sriram & Atulya K. Nagar & Linqiang Pan & K. G. Subramanian & Ali Jaballah, 2020. "Algebraic Properties of Parikh Matrices of Binary Picture Arrays," Journal of Mathematics, Hindawi, vol. 2020, pages 1-7, June.
    • Handle: RePEc:hin:jjmath:3236405
    DOI: 10.1155/2020/3236405
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