Norm bounds for circulant-type matrices associated with the bi-periodic Pell–Lucas sequence are examined from a symmetry-driven perspective. By incorporating alternating recurrence coefficients, the results clarify how periodicity and circulant structure affect spectral norm behavior through explicit bounds. This framework extends existing Pell–Lucas-type matrix inequalities and emphasizes the role of symmetry in spectral analysis.
Uygun et al. (Thu,) studied this question.
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