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A New Approach to Determine the Minimal Polynomials of Binary Modified de Bruijn Sequences

Author

Listed:
  • Musthofa

    (Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara BLS 21, Yogyakarta 55281, Indonesia
    Department of Mathematics Education, Universitas Negeri Yogyakarta, 1 Colombo Road, Yogyakarta 55281, Indonesia)

  • Indah Emilia Wijayanti

    (Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara BLS 21, Yogyakarta 55281, Indonesia)

  • Diah Junia Eksi Palupi

    (Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara BLS 21, Yogyakarta 55281, Indonesia)

  • Martianus Frederic Ezerman

    (School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore)

Abstract

A binary modified de Bruijn sequence is an infinite and periodic binary sequence derived by removing a zero from the longest run of zeros in a binary de Bruijn sequence. The minimal polynomial of the modified sequence is its unique least-degree characteristic polynomial. Leveraging a recent characterization, we devise a novel general approach to determine the minimal polynomial. We translate the characterization into a problem of identifying a Hamiltonian cycle in a specially constructed graph. The graph is isomorphic to the modified de Bruijn–Good graph. Along the way, we demonstrate the usefulness of some computational tools from the cycle joining method in the modified setup.

Suggested Citation

  • Musthofa & Indah Emilia Wijayanti & Diah Junia Eksi Palupi & Martianus Frederic Ezerman, 2022. "A New Approach to Determine the Minimal Polynomials of Binary Modified de Bruijn Sequences," Mathematics, MDPI, vol. 10(15), pages 1-18, July.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:15:p:2577-:d:871003
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